Clsi breakpoints 2019. Template for Documenting Breakpoints in Use Part B.
Clsi breakpoints 2019. Breakpoint Implementation Summary .
Clsi breakpoints 2019 to Disk diffusion breakpoints are dependent on the concentration of antimicrobial impregnated into the disk, otherwise known as the disk content. These recommendations were approved by the CLSI Antimicrobial Susceptibility Testing Subcommittee in 2016. Order Code PDF: CLSI AUTO15Ed1E ISBN Number: 978-1-68440-057-7 • Understanding Breakpoint Decisions: CLSI Rationale Documents (FREE December 2019) • CLSI-CAP Annual Webinar: Rational Approach to Antibacterial and Antifungal Breakpoints (FREE November 2019) • Understanding Susceptibility Test Data as a Component of Antimicrobial Stewardship in Veterinary Settings (FREE July Disk diffusion breakpoints are dependent on the concentration of antimicrobial impregnated into the disk, otherwise known as the disk content. Reaffirmed. pleuropneumoniae and H. We evaluated the Evaluation of Rezafungin Provisional CLSI Clinical Breakpoints and Epidemiological Cutoff Values Tested against a Worldwide Collection of Contemporaneous Invasive Fungal Isolates (2019 to 2020) A CLSI supplement for global application. 1 CDC’s 2019 Antibiotic Resistance Threats Report estimated that there were 8,500 carbapenem-resistant microbiology conundrum—used clinically—but given the absence of breakpoints, there are substantial technical challenges in Alena Shamsheyeva, Niels Oppermann, Aimee Taku, Anyangatia Ndobegang, Dulini Gamage, Christina Chantell, Romney Humphries, 2144. xxix), Pseudomonas aeruginosa (p. maltophilia. The document’s In 2019, the Clinical and Laboratory Standards Institute (CLSI) revised and lowered the levofloxacin MIC breakpoints for Enterobacterales (). Provisional breakpoints (BP) were approved by CLSI in 2018, with FDA and EUCAST providing clinical BP in 2019 and 2020, respectively; however, BPs differ markedly between organizations, reflecting differences in labelling, PK/PD standards and • CLSI 2019 Antimicrobial Susceptibility Testing Update (FREE, February 2019) • Resources for Implementation of Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight Mass Spectrometry An archive of breakpoints removed from M100 since 2010 together with the rationale for their removal is available This article came from AST News Update, Volume 4, Issue 1 – January 2019 which is produced by the CLSI Outreach Working Group (ORWG). This article came from AST News Update, Volume 4, Issue 1 – January 2019 which is produced by the CLSI Outreach Working Group (ORWG). In 2019, these revisions include changes to the ciprofloxacin Until 2019, CLSI assigned a susceptible MIC daptomycin breakpoint of ≤4 µg/ml to all Enterococcus spp. Find out more from CLSI. laboratories and 423 international laboratories) Answer Options: • Yes • No • Not tested • Unsure/Other This document provides practical guidance for the estimation and expression of the measurement uncertainty (MU) of quantitative measurand values produced by medical laboratories. How We Can Help You June 2019; January 2019; January 2018; January 2017; January 2016 Rezafungin is a new echinocandin under development for the treatment of candidemia and invasive candidiasis. 57:e00203-19 6 New data demonstrate poor prediction of clinical response using previous breakpoints Specific public health need not addressed previously Significant MIC/disk diffusion discordance when testing recent clinical isolates Changes to CLSI-approved reference methods The resistance rates of the pathogens to levofloxacin were 28. Finally, help CLSI and the CDC spread the word about antibiotic resistance by using #CDCARthreats on social media. Partial. CDC and FDA AR Bank BIT Isolate Sets Volume 4, Issue 2 June 2019 1 CLSI Subcommittee on Antimicrobial Susceptibility Testing CLSI AST News Update The CLSI Outreach Working Group (ORWG) Second Revision to CLSI Daptomycin Breakpoints Daptomycin is one of the few treatment options for serious infections caused by vancomycin-resistant enterococci. maltophilia infections; levofloxavin and minocycline are the preferred potential alternatives. 0100 F +1. The revised breakpoints were published in the 29th edition of the M100 Supplemental Performance Standards for Antimicrobial Susceptibility Testing in January 2019 breakpoints for Enterococcus spp. Additionally, CLSI annually creates and revises AST breakpoints to meet global public health challenges related to antimicrobial resistance. faecium). Humphries, PhD, D(ABMM) Date of Publication: November 20, 2019 Order Code PDF: CLSI MR05Ed1E ISBN Number: 978-1-68440-061-4 Order Code Print: print not available Edition: First Pages: 11 CLSI has no such breakpoints. Of these, 28-45% were not susceptible to carbapenem antibiotics (ie, intermediate or resistant). We thank Chu and colleagues for highlighting the potential impact of the 2019 revised Clinical and Laboratory Standards Institute (CLSI) Enterobacteriaceae fluoroquinolone breakpoints on the reporting of other members of this antibiotic class, in this case, nalidixic acid. Specifically, CLSI recognized Last reviewed June 2019; first published in CLSI document M100, 30th ed. Global Training. and Pseudomonas Template for Documenting Breakpoints in Use . CDC and FDA AR Bank BIT Isolate Sets Find this and other General Laboratory standards documents in the CLSI Shop. Disclosure of Interest; AST Subcommittee Orientation 2018; CLSI together with CAP and ASM are coordinating preparation and distribution of materials to help you address the CMS requirement for implementation of IQCP (Individualized Quality Control . Unauthorized duplication or P +1. Understanding how CLSI’s antimicrobial susceptibility testing (AST) breakpoints and interpretive categories are determined is important for medical laboratories, drug and device manufacturers, and regulatory and accreditation organizations. Using the CLSI voluntary consensus process, the Subcommittee on Antimicrobial Susceptibility Testing develops standards that promote accurate antimicrobial susceptibility testing and appropriate reporting. However, in clinical practice, meropenem is frequently 9/5/2019 11:56:18 AM In 2019, the Clinical and Laboratory Standards Institute revised the fluoroquinolone antimicrobial susceptibility testing breakpoints for both Enterobacteriaceae and Pseudomonas aeruginosa This breakpoint revision was deemed necessary on the basis of pharmacokinetic and pharmacodynamic analyses suggesting that the previous breakpoints were too Evaluation of rezafungin provisional CLSI clinical breakpoints and epidemiological cutoff values tested against a worldwide collection of contemporaneous invasive fungal isolates (2019 to 2020) by Carvalhaes CG, Klauer AL, Rhomberg PR, Pfaller MA, Castanheira, M in J. %PDF-1. Azithromy eakpoin Volume 4, Issue 2 June 2019 1 CLSI Subcommittee on Antimicrobial Susceptibility Testing CLSI AST News Update The CLSI Outreach Working Group (ORWG) Second Revision to CLSI Daptomycin Breakpoints Daptomycin is one of the few treatment options for serious infections caused by vancomycin-resistant enterococci. 2 b. These MICs were then analysed using both CLSI 2019 and EUCAST 2019 guidelines and classified as per Rationale for Using CLSI Breakpoints. I. In January 2019, revisions to the ceftaroline breakpoints were published in CLSI document M100, 29th ed. Date of Publication: June 19, 2019. aureus (MSSA) Naccache SN, Callan K, Burnham CA, Wallace MA, Westblade LF, Dien Bard J, Staphylococcus Ad Hoc Working Group of the CLSI AST Subcommittee. As noted by the authors, this breakpoint revision was limited to ciprofloxacin and • CLSI-CAP Annual Webinar: Rational Approach to Antibacterial and Antifungal Breakpoints (FREE November 2019) • Understanding Susceptibility Test Data as a Component of Antimicrobial Stewardship in Veterinary Settings (FREE July 2019) • CLSI 2019 Antimicrobial Susceptibility Testing Update (FREE, February 2019) presented for evaluation, are described in CLSI document M23. The Evaluation of rezafungin provisional CLSI clinical breakpoints and epidemiological cutoff values tested against a worldwide collection of contemporaneous invasive fungal Olorofim susceptibility testing of 1,423 Danish mold isolates obtained in 2018–2019 confirms uniform and broad‐spectrum activity. It has become The Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints for bacteria that grow aerobically since 2010. 7 CLSI voluntary consensus process Members Advisors Observers (public) Subcommittee on antimicrobial susceptibility testing CLSI MR02; 2019 14 Susceptibility may decrease over time, resulting in lack of clinical efficacy and/or safety How CLSI set breakpoints and ECVs. During the 27–29 January 2019 meeting of the CLSI Subcommittee on Antimicrobial Susceptibility Testing, data were presented that warranted the approval of separate In 2019, CLSI revised the MIC and disk diffusion breakpoints of ciprofloxacin and levofloxacin for P. freundii) and no VMEs. 02449-21 ISO 20776-1:2019 Additional Details. For E. Azithromy eakpoin breakpoints for Enterococcus spp. pneumoniae, 1 C. Reference. aeruginosa; the breakpoints can be found here. TMP-SMZ is the standard care of therapy for treating S. The goals of a CLSI polymyxin breakpoint were as follows: Drive education regarding Evaluation of the new data has rendered several drug breakpoints obsolete. Performance of the direct blood culture DD method must be paired with an identification method since breakpoints are specific to either Enterobacterales or P. In CLSI breakpoints S: Susceptible, I: Intermediate, R: Resistant, SDD: Susceptible Dose Dependent). Buy GP47-Ed1, “Management of Critical- and Significant-Risk Results,” at CLSI. Breakpoint Implementation Summary Template for documenting results of a validation study to update breakpoints Part D. Order Code PDF: CLSI AUTO15Ed1E ISBN Number: 978-1-68440-057-7 A recent update by the Clinical Laboratories Standards Institute (CLSI) has revised the fluoroquinolone antimicrobial susceptibility testing (AST) breakpoints for both Enterobacteriaceae and Pseudomonas aeruginosa, but the authors on a new paper about the revisions question whether the updated breakpoints have enough teeth to reduce the problem However, CLSI breakpoints may differ from breakpoints approved by various regulatory organizations for many reasons, including: Database differences the Subcommittee on Antifungal Susceptibility Tests during the annual meetings in January 2019 and January 2020. In this non interventional, retrospective observational study, we reviewed minimum inhibitory concentrations (MIC) of various antibiotics routinely reported for Enterobacteriaceae clinical isolates, from an automated microbiology identification system (VITEK-2). The Clinical and Laboratory Standards Institute (CLSI) updated fluoroquinolone breakpoints in 2019 in response to evolving resistance and new outcome data. While studies have examined the impact of replacing CLSI with A CLSI supplement for global application. EA and CA for all antimicrobial/organism combinations were >94%. The formation of the working group originated in a desire to efficiently convey information regarding Learn more about how CLSI is uniquely qualified to serve as the go-to source of AST methods and interpretive criteria and why CLSI breakpoints are so important here. During the 27–29 January 2019 meeting of the CLSI Subcommittee on Antimicrobial Susceptibility Testing, data were presented that warranted the approval of separate The incidence of this resistance mechanism among isolates included in the data set evaluated by the CLSI for the TZP breakpoints is unknown, which is a limitation of this study. and Pseudomonas aeruginosa after an increase in minimal inhibitory concentrations (MICs) to FQ among Gram-negative bacteria (GNB), application of sophisticated FQ Since 2010, the Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints for bacteria that grow aerobically. Membership discounts cannot be applied to ISO documents because they are not published by CLSI. CLSI is able to offer ISO Technical Committee 212 approved and draft standards through an agreement The incidence of this resistance mechanism among isolates included in the data set evaluated by the CLSI for the TZP breakpoints is unknown, which is a limitation of this study. Order Code PDF: CLSI QMS01Ed5E ISBN Number: 978-1-68440-044-7 After analyzing data that are outlined in this article, the CLSI Subcommittee on Antimicrobial Susceptibility Testing established new breakpoints for daptomycin and enterococci. xxx), and . If you or your organization is not a member and would like to become one, and to request a copy of the catalog, contact us at: Telephone: 610. Template for documenting results of a validation study to update breakpoints. View our Antifungal Susceptibility Testing files and resources. Since 2010, the Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints for bacteria that grow aerobically. Before conducting antifungal susceptibility testing, isolates must be correctly identified using reliable M100 Archive Table — PDF document of breakpoints eliminated from CLSI document M100 since 2010. This talk will discuss the differ-ences in the breakpoints established by the two organizations, the The Bulletin Board, located on the dashboard, provides access to messages from CLSI and account administrators, all in one place. Member price: List Price: PDF-Quick Guide Add to Disk diffusion breakpoints are dependent on the concentration of antimicrobial impregnated into the disk, otherwise known as the disk content. The updated antimicrobial susceptibility testing (AST) criteria refer to MICs of ≤0. Written by Julie Luedtke DHHS Program Manager II, Newborn Screening & Genetics Program, Public Health, Nebraska Department of Health and This archived document is no longer being reviewed through the CLSI Consensus Document Development Process. Shionogi maintains an up-to-date listing of available testing methods here. Part D. 0100; Fax: 610. OXA-1 beta-lactamase and non-susceptibility to penicillin/beta-lactamase inhibitor Breakpoints Eliminated From CLSI Document M100 Since 2010 Reflects M100-Ed34, published February 2024. About. Several new revisions occurred this year, with publication of CLSI M100, 29th edition, January 2019 The Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints since 2010 for bacteria that grow aerobically. Date of Publication: September 11, 2019. Author: Ana Espinel-Ingroff. The Clinical and Laboratory Standards Institute (CLSI) revised the fluoroquinolone MIC breakpoints for Enterobacterales in 2019, based on pharmacokinetic/pharmacodynamic analyses. Global Partnerships. Understanding Susceptibility Test Data as a Component of Antimicrobial Stewardship in Veterinary Settings. Clinical and Laboratory Standards Institute (CLSI), Association of Public Health Laboratories (APHL), American Society for Microbiology (ASM), College of American Pathologists (CAP), and Centers for Disease Control and Prevention CLSI Breakpoint Additions/Revisions Since 2010: Added: o Cefiderocol investigational minimal inhibitory concentration (MIC) breakpoints for . Breakpoint Implementation Summary . In 2019, these revisions include changes to the ciprofloxacin Rationale for Using CLSI Breakpoints. Sample 33rd Edition. Users of Find the CLSI clinical standards and educational materials that meet your needs. Abstract: Susceptibility testing should be viewed as part of the process of predicting patient response to therapy, which is the role of the breakpoint (BP). 22% according to the historical Clinical and Laboratory Standards Institute (CLSI) breakpoints and the updated 2019 CLSI FDA-cleared tests are based on FDA breakpoints, and use of alternative breakpoints for FDA-cleared tests require validation. org; Website: www. (other than E. and rezafungin. Cephalosporins and aztreonam. January 2015, January 2016, January 2017, January 2018, January 2019, January 2020, March 2021, February 2022 M100-Ed33 ISBN 978-1-68440-170-3 (Print) ISBN 978-1-68440-171-0 (Electronic) Summary of CLSI Processes for Establishing Breakpoints and Quality Control Ranges How CLSI set breakpoints and ECVs. 0001) but increased the VME to 81% (13/16) with no ME and The table below lists antibacterial drugs and indicates which, if any, susceptibility test interpretive criteria, also known as “breakpoints” (abbreviated as STIC), are recognized or Updates to CLSI M100-S29 2019 - Read online for free. 1128/jcm. • CLSI-CAP Annual Webinar: Rational Approach to Antibacterial and Antifungal Breakpoints (FREE November 2019) • Understanding Susceptibility Test Data as a Component of Antimicrobial Stewardship in Veterinary Settings (FREE July 2019) • CLSI 2019 Antimicrobial Susceptibility Testing Update (FREE, February 2019) The Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints since 2010 for bacteria that grow aerobically. Resistant Subsets The CRE isolates were defined as displaying imipenem or meropenem MIC values of ≥4 mg/L. 3 Over time, a microorganism’s susceptibility to an antimicrobial agent may decrease, resulting in a lack of clinical efficacy and/ CLSI rationale document MR02 February 2019 1 SAMPLE. 5 g every 8 hours) were added as support in Clinical Laboratory Standards Institute (CLSI) tables [8, 9]. In 2018, the Clinical and Laboratory Standards Institute (CLSI) approved a revision to the Enterobacteriaceae and Pseudomonas aeruginosa ciprofloxacin and levofloxacin MIC and disk diffusion (DD) breakpoints. aureus. EUCAST has cefiderocol breakpoints only for Enterobacterales and P. Laboratories can validate the updated breakpoints for off-label use. Over the past decade, CLSI has introduced several non-FDA-approved breakpoints, Background and rationale for revised Clinical and Laboratory Standards Institute interpretive criteria (breakpoints) for Enterobacteriaceae and Pseudomonas aeruginosa. Hopkins KL, Toleman MA, Wareham DW, Wiuff C, Doumith M, Woodford N. Staphylococcus aureus: ceftaroline breakpoints CLSI MR02; 2019 12. Part B. Mathers This article came from AST News Update, Volume 4, Issue 1 – January 2019 which is produced by the CLSI Outreach Working Group (ORWG). Broth dilution testing of A. However, clinical evidence supporting these breakpoint revisions is limited. 4% of isolates were azole resistant, a higher-than-expected figure in that country . This document also applies to That study was conducted prior to the 2022 CLSI updated TZP breakpoints, but those authors did evaluate the performance of Etest using current FDA breakpoints (equivalent to 2021 CLSI breakpoints) compared to that with the 2018 European Committee on Antimicrobial Susceptibility Testing (EUCAST) breakpoints, which were similar to the 2022 CLSI Find the CLSI clinical standards and educational materials that meet your needs. CLSI M100 29th ed. , and ceftaroline Template for Documenting Breakpoints in Use Part B. isolates with elevated MICs. 0700; E-Mail: customerservice@clsi. The reason for the 2019 breakpoint revision was that ciprofloxacin and levofloxacin resistance was high, and the 2018 breakpoint could not detect low-level resistance. In January 2019, CLSI modified the ceftaroline breakpoints and introduced the susceptible dose-dependent (SDD) category [] for this agent, based on the These MICs are susceptible by the 2018 breakpoints and not susceptible by the 2019 breakpoints. xxx) o Meropenem-vaborbactam disk diffusion and MIC breakpoints for In 2019, these revisions include changes to the ciprofloxacin and levofloxacin breakpoints for the Enterobacteriaceae and Pseudomonasaeruginosa , daptomycin breakpoints for Enterococcus spp. However, in clinical practice, meropenem is frequently 9/5/2019 11:56:18 AM Cefiderocol (CFDC) is a siderophore cephalosporin with broad coverage of aerobic Gram-negative (GN) bacteria. ORDER TODAY: Toll Free (US): 877. to The enterococcal daptomycin breakpoints have been under review by CLSI since June 2016, when issues regarding both daptomycin treatment failures for Enterococcus spp. Table 2. xxx), Acinetobacter . January 2015, January 2016, January 2017, January 2018, January 2019, January 2020, March 2021, February 2022 M100-Ed33 ISBN 978-1-68440-170-3 (Print) ISBN 978-1-68440-171-0 (Electronic) Summary of CLSI Processes for Establishing Breakpoints and Quality Control Ranges The breakpoints of levonadifloxacin were derived in concordance to US FDA, European Committee on Antibiotic Susceptibility Testing (EUCAST) and CLSI approaches. In January 2019, the Clinical and Laboratory Standards Institute (CLSI) lowered the clinical breakpoints of fluoroquinolones (FQ) for Enterobacteriaceae other than Salmonella spp. Further, the article provides a brief account of challenges encountered during the discovery stages of levonadifloxacin and alalevonadifloxacin, activity spectrum and safety benefits The evaluation of the impact of changes in the CLSI breakpoints [] is also important because clinical microbiology laboratories in the USA and several other countries use breakpoint criteria published by that organization. In 2019, these revisions include changes to the ciprofloxacin and levofloxacin breakpoints for the Enterobacteriaceae and Pseudomonas aeruginosa, daptomycin breakpoints for Enterococcus spp. In 2019, these revisions include changes to the ciprofloxacin CLSI Breakpoints for Direct Blood Culture Disk Diffusion. but in addition to improve transparency on how CLSI arrives at breakpoints. Background The Clinical and Laboratory Standards Institute (CLSI) lowered the Enterobacterales susceptible/resistant breakpoints for amikacin in 2023 from ≤16/≥64 mg/L to ≤4/≥16 mg/L and Volume 4, Issue 1 January 2019 1 CLSI Subcommittee on Antimicrobial Susceptibility Testing CLSI AST News Update The CLSI Outreach Working Group (ORWG) is providing this Newsletter Setting Breakpoints,” will be held on Saturday, January 26, 2019, in St. The revised breakpoints were published in the 29th edition of the M100 Supplemental Performance Standards for Antimicrobial Interferences with clinical laboratory tests can create discrepancies in test results which can lead to patient harm. 2nd Edition. 1 CDC’s 2019 Antibiotic Resistance Threats Report estimated that CLSI BIT Webinar Get Current! Using the 2023 Breakpoint Implementation Toolkit to Update and Document AST Breakpoints. Table 1. Comparing BMD testing and Etest with the old CLSI breakpoints yielded a CA similar to that seen with the 2019 criteria (51%, 164/320, P 0. This document provides practical guidance for the estimation and expression of the measurement uncertainty (MU) of quantitative measurand values produced by medical laboratories. Recommended 24-Hour Minimal Inhibitory Concentration or Minimal Effective Purpose of Review This review outlines the process of setting and revising Clinical and Laboratory Standards Institute (CLSI) breakpoints and summarizes breakpoints approved in 2023. and Pseudomonas • Understanding Breakpoint Decisions: CLSI Rationale Documents (FREE December 2019) • CLSI-CAP Annual Webinar: Rational Approach to Antibacterial and Antifungal Breakpoints (FREE November 2019) • Understanding Susceptibility Test Data as a Component of Antimicrobial Stewardship in Veterinary Settings (FREE July It must be noted that updated CLSI ciprofloxacin breakpoints for Enterobacteriaceae and P. Updated CLSI documents must be purchased annually, at a cost to non-members in 2018 of US$342–504 depending on the bundle chosen, although breakpoints for frequently isolated non-fastidious organisms can be freely accessed as an online-only companion to the CLSI M100 document . Antimicrobial nearest whole mm Agent Disk Content Interpretive Categories and Zone Diameter Breakpoints, Interpretive Categories and MIC Breakpoints, µg/mL M100 Edition in Which Breakpoints Were Last S I R S I R Included/Comments Rationale INTRODUCTION. These QC ranges are tentative and are open for comment for one year from the 62 publication of CLSI M100, 29 th edition, January 2019 (Table 1). The details of the necessary and recommended data for selecting appropriate breakpoints and QC ranges, and how the data are presented for evaluation, are described in CLSI document M23. However, this document is technically valid as of January 2019. Published in 2019. as of September 2019. M100-Ed31 March 2021 January 2018, January 2019, January 2020 M100-Ed31 ISBN 978-1-68440-104-8 (Print) ISBN 978-1-68440-105-5 (Electronic) ISSN 1558-6502 (Print) ISSN 2162-2914 (Electronic) Volume 41, Number 3 Summary of CLSI Processes for Establishing Breakpoints and CLSI M100-Ed33: Updated Aminoglycoside Breakpoints for Enterobacterales and Pseudomonas aeruginosa; AST Article: New CLSI Intrinsic Resistance Guidance for Fungi; AST Article: The Latest on Testing Cefiderocol; Volume 4, Issue 2 - June 2019 (English) Future CLSI Meetings; New/Updated Documents; Consequently, it is unlikely that such systems will be updated with the current CLSI cefazolin breakpoints any time soon. July 2019. 3 The disk diffusion and Etest methods performed well with this challenging collection of isolates, although laboratories must be aware of minor errors, particularly for isolates with results near the breakpoint. Another option is to perform reflex • Understanding Breakpoint Decisions: CLSI Rationale Documents (FREE December 2019) • CLSI-CAP Annual Webinar: Rational Approach to Antibacterial and Antifungal Breakpoints (FREE November 2019) • Understanding Susceptibility Test Data as a Component of Antimicrobial Stewardship in Veterinary Settings (FREE July presented for evaluation, are described in CLSI document M23. The MIC breakpoints used for analysis as per the EUCAST 2019 and CLSI 2019 guidelines. S. When deciding to revise an 63 existing breakpoint, CLSI follows criteria outlined in the M23 guideline , which are summarized 122 CLSI breakpoints until they are recognized by FDA on the STIC website (Figure 1). Get Support. Slides Only: Updating Breakpoints—Challenges and Solutions for Various Stakeholders; Other. maltophilia breakpoints in 2019 and concluded insufficient data were available by which to make needed updates to CLSI S. 2018-08-13. Receive the latest guidance for implementing new breakpoints and standards into your laboratory practices, including discussion of the major changes in this edition, including: A significant addition of a new appendix; Expanded QC guidance; Removal of breakpoint; A new categorization of disk diffusion methods described in CLSI M02. Evaluation of oxacillin and cefoxitin disk diffusion and microbroth dilution methods for detecting breakpoints for Enterococcus spp. CDC and FDA AR Bank BIT Isolate Sets The breakpoint revisions in the M100 supplement since 2010 are described and strategies for the laboratory on how to best adopt these in clinical testing are described. (CLSI) updated fluoroquinolone breakpoints in 2019 in response to evolving resistance and new outcome data. Before conducting antifungal susceptibility testing, isolates must be correctly identified using reliable WHEN NEEDED (per CLSI M23) II? J. Laboratory workflows for this method vary based on whether or not the organism identification is available at the Breakpoints, Interpretive Categories and M100 Edition in Which MIC Breakpoints, µg/mL Breakpoints Were Last S I R S I R Included/Comments Rationale Staphylococcus spp. January 2019 which is produced by the CLSI Outreach Working Group In 2018, the Clinical and Laboratory Standards Institute (CLSI) approved a revision to the Enterobacteriaceae and Pseudomonas aeruginosa ciprofloxacin and levofloxacin MIC and disk diffusion (DD) breakpoints. Imipenem was not applied to Proteus mirabilis or indole-positive ISO 20776-1:2019 Additional Details. Additionally, CLSI annually Template for Documenting Breakpoints in Use Part B. Appendix E. 1%), and 27 minor errors (mE) (46. [5] As with most updated CLSI breakpoints, the new breakpoints are currently not FDA approved for use on commercial systems. faecium Template for Documenting Breakpoints in Use Part B. However, the breakpoints for nalidixic acid and other fluoroquinolone antibiotics have remained unchanged. (CLSI) guidelines. While studies have examined the impact of replacing CLSI with CLSI has a longstanding globally trusted reputation for its diligent development of Microbiology and Antimicrobial Susceptibility Testing (AST) standards and guidelines on test methods and QC procedures. CDC. Fajt, DVM, PhD, DACVCP CLSI-Approved Bovine-Specific Breakpoints . The document’s A large multicentre study conducted in Spain in 2019 proved that 7. Chairholder: Laura McClannan, MS, MT(ASCP)SBB, CQA(ASQ) Date of Publication: December 30, 2016 Order Code PDF: CLSI QMS03Ed4E ISBN Number: 1-56238-803-7 Order Code Print: print not During the 14-15 June 2019 meeting of the CLSI Subcommittee on VAST, data were presented QC procedures, breakpoints, and interpretive categories must be modified to fit each organism (see Table 2). SAMPLE Although the FDA recognizes current CLSI breakpoints for doripenem and imipenem for . CLSI Breakpoint Additions/Revisions Since 2010: Added: o Cefiderocol investigational minimal inhibitory concentration (MIC) breakpoints for . FDA breakpoints Breakpoint additions/revisions since 2010 ECV additions/revisions since 2015 4 . The Latest From GHP. aureus, and Streptococcus equi subsp. In 2019, the Clinical and Laboratory Standards Institute (CLSI) published revisions to the Enterobacteriaceae ciprofloxacin and levofloxacin breakpoints. It has become presented for evaluation, are described in CLSI document M23. Log in/sign up to see your price. (Continued) Cefonicid 30 g ≥ 18 15–17 ≤ 14 ≤ 8 16 ≥ 32 Cefoperazone 75 g ≥ 21 16–20 ≤ 15 ≤ 16 32 ≥ 64 Cefotaxime 30 g ≥ 23 15–22 ≤ Stenotrophomonas maltophilia is challenging to treat due to the presence of multiple intrinsic and acquired resistance mechanisms. CLSI is able to offer ISO Technical Committee 212 approved and draft standards through an agreement data that could be used to establish those breakpoints. Augustine, Florida. Date: 18 December 2015. 2019. Modeling and simulation analyses supported a change in the breakpoints to effectively treat . 610. 7 CLSI voluntary consensus process Members Advisors Observers (public) Subcommittee on antimicrobial susceptibility testing CLSI MR02; 2019 14 Susceptibility may decrease over time, resulting in lack of clinical efficacy and/or safety Susceptibility rates were calculated using both the 2022 CLSI and 2022 US FDA breakpoints as well as the recently revised 2023 CLSI breakpoints for aminoglycosides . The second is that EUCAST has estab-lished breakpoints for Amphotericin B, itraconazole, voriconazole and posaconazole against Aspergillus species while the CLSI has not estab-lished any mold-specific breakpoints. Details. 688. Microbiol. M61-Ed2 June 2020 Replaces M61-Ed1. The Recorded on December 17, 2019. 5/17/2019. and the appropriate enterococcal endocarditis dose for daptomycin were first discussed. org | customerservice@clsi. Interpretive breakpoints were derived from a collection of sequence • CLSI 2019 Antimicrobial Susceptibility Testing Update (FREE, February 2019) • Resources for Implementation of Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight Mass Spectrometry An archive of breakpoints removed from M100 since 2010 together with the rationale for their removal is available Rezafungin is a new echinocandin under development for the treatment of candidemia and invasive candidiasis. Connect. 6%) using the 2019 CLSI disk breakpoints. Performance standards for antimicrobial susceptibility testing, 29th ed CLSI supplement M100 Clinical and Laboratory Standards A large multicentre study conducted in Spain in 2019 proved that 7. 157 Until there is additional clinical, PK/PD, microbiological and in vitro methodology research, it is unlikely additional breakpoints will be recognized for S. VET09, 1st ed. 7/24/2019. Find CLSI standards and educational materials that match your needs. The document summarizes changes made in the 29th edition of the CLSI M100 clinical and laboratory standards institute document, which establishes antimicrobial susceptibility testing standards and interpretive criteria. We evaluated the performance of disk diffusion and Etest compared to that of reference broth microdilution by use of The enterococcal daptomycin breakpoints have been under review by CLSI since June 2016, when issues regarding both daptomycin treatment failures for Enterococcus spp. To date, CLSI does not offer clinical breakpoints against Aspergillus spp. When deciding whether the interpretation is meaningful, one should 28 Susceptible MIC (µg/ml) Breakpoints for Aerobic Gram-negative Bacilli (CLSI M100 30th edition data) . For ciprofloxacin disk diffusion, the categorical agreement (CA) was 46. January 2019 which is produced by the CLSI Outreach Working Group (ORWG). Fluor eakpoin in the CLSI catalog and posted on our website at www. clsi. published in CLSI document M100, During the 27–29 January 2019 meeting of the CLSI Subcommittee on Antimicrobial Susceptibility Testing, data were presented that warranted the approval of separate daptomycin breakpoints for Enterococcus faecium only and Enterococcus spp. 42 29 Susceptible MIC (µg/ml) Breakpoints for Aerobic ISO 35001:2019 Additional Details. CLSI. The formation of the working group originated in a desire to efficiently convey information regarding Find this and other General Laboratory standards documents in the CLSI Shop. 0001) but increased the VME to 81% (13/16) with no ME and A quick reference tool for those seeking information on CLSI documents referenced in the FDA Accreditation Checklists. When necessary, CLSI revises interpretive breakpoints in efforts to improve clinical correlation, with two revisions relative to fluoroquinolone agents occurring in 2019. aeruginosa, and Acinetobacter spp. Acinetobacter. Chairholder: Romney M. antimicrobial agents, despite the availability of new drugs demonstrating greater clinical efficacy. commercial methods CLSI reference vs. The CLSI has established species-specific BPs for testing the susceptibility of six Candida spp. June 2019; January 2019; January 2018; January 2017; January Browse minor corrections for CLSI documents that were identified after the documents were published. Messaging Users can send e-mail messages to other users, account administrators, and CLSI. Investigational cefiderocol BMD for: ISO 20186-2:2019 Additional Details. Stenotrophomonas maltophilia (p. CLSI is able to offer ISO Technical Committee 212 approved and draft standards through an agreement In January 2019, the Clinical and Laboratory Standards Institute (CLSI) lowered the clinical breakpoints of fluoroquinolones (FQ) for Enterobacteriaceae other than Salmonella spp. org W www. The CLSI Antimicrobial Susceptibility Testing (AST) Subcommittee convened an ad hoc working group In 2017, CLSI combined broth and disk susceptibility testing recommendations for Candida and species-specific MIC interpretive breakpoints into CLSI document M60. CLSI is able to offer ISO Technical Committee 212 approved and draft standards through an agreement The Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints for bacteria that grow aerobically since 2010. A CLSI supplement for global application. 7-290. S. ; 2019 WHAT’S IN THERE? Overview of changes Processes for establishing breakpoints, QC ranges CLSI reference vs. Find the latest news, updates, and resources from CLSI's VAST committee and subcommittees. As it represents SIR classification difficulties unrelated to analytical variation, its place in AST evaluation seems unclear but needs to be addressed. CLSI vs FDA Breakpoints . It has become “For MIC testing, has your laboratory updated breakpoints to current CLSI/FDA breakpoints by performing in-lab validation/verification studies?” 2,296 laboratories in June 2019 (1,873 U. aeruginosa. Sample. Listing of all current CLSI breakpoints (M100-Ed34) and corresponding FDA breakpoints. CLSI vs FDA Breakpoints Listing of all current CLSI breakpoints (M100-Ed33) and corresponding FDA breakpoints Part C. 2022; 60 (4) doi: 10. CLSI is able to offer ISO Technical Committee 212 approved and draft standards through an agreement Evaluation of rezafungin provisional CLSI clinical breakpoints and epidemiological cutoff values tested against a worldwide collection of contemporaneous invasive fungal Olorofim susceptibility testing of 1,423 Danish mold isolates obtained in 2018–2019 confirms uniform and broad‐spectrum activity. , These factors led CLSI to re-evaluate polymyxin breakpoints in 2019 for Enterobacterales, P. First, learn about the FDA’s Role in increasing the availability and reliability of ASTs: The 21st Century Cures Act and ASTs; CLSI MR01 | Polymyxin Breakpoints for Enterobacterales, Pseudomonas aeruginosa, and Acinetobacter spp. a Breakpoints were evaluated but not changed for other intravenous cephems, but dosage regimens supporting the existing breakpoints for cefepime (1 g every 8 hours or 2 g every 12 hours) and cefuroxime (1. M100 Performance Standards for Antimicrobial Susceptibility Testing This document includes updated tables for the Clinical and Laboratory Standards Institute antimicrobial susceptibility testing standards M02, M07, and M11. (Abbreviations meaning in EUCAST breakpoints S: Susceptible, I: Susceptible Increased Exposure, R: Resistance, ATU: Area of Technical Uncertainty. aeruginosa are more closely aligned with EUCAST, meaning some but not all discrepancies in ciprofloxacin susceptibility would have been eliminated had 2019 breakpoints been used for the analysis. Administrators CLSI M100; 29th ed. xxx) o Meropenem-vaborbactam disk diffusion and MIC breakpoints for Rationale for Using CLSI Breakpoints. xxx) o Meropenem-vaborbactam disk diffusion and MIC breakpoints for CLSI antifungal breakpoints are provided in CLSI M27M44S2 and CLSI M38M51S. Key changes include new susceptibility breakpoints for cefiderocol, meropenem-vaborbactam, and Objective: Many clinical microbiology laboratories procure antimicrobial susceptibility testing data using guidelines established by Clinical and Laboratory Standards Institute (CLSI). In CLSI Breakpoint Additions/Revisions Since 2010: Added: o Cefiderocol investigational minimal inhibitory concentration (MIC) breakpoints for . Messages from CLSI include announcements of new or revised documents, posted immediately upon publication. It has become In 2019, the Clinical and Laboratory Standards Institute (CLSI) published revisions to the Enterobacteriaceae ciprofloxacin and levofloxacin breakpoints. Antibiotic Resistance Threats in the United In 2019, the Clinical and Laboratory Standards Institute revised the fluoroquinolone antimicrobial susceptibility testing breakpoints for both Enterobacteriaceae and Pseudomonas aeruginosa This breakpoint revision was deemed necessary on the basis of pharmacokinetic and pharmacodynamic analyses suggesting that the previous breakpoints were too Staphylococcus aureus: ceftaroline breakpoints CLSI MR02; 2019 12. aeruginosa and Enterobacterales other than Salmonella spp. Clin. However, there were insufficient data, and a Susceptible dose-dependent breakpoints published in CLSI M100S (29th edition) and M60 (1st edition) Antimicrobial and organism group AST a result Adult dose; Cefepime Enterobacteriaceae: 4 μg/ml: CLSI. Essential agreement (EA), categorical agreement (CA), very major error (VME), major error (ME) and minor error (mE) rates were calculated using 2019 CLSI breakpoints. , 2nd Edition. (p. 1 of 2 1 2. Performance of 2019 CLSI Ciprofloxacin Breakpoint Antimicrobial Susceptibility Testing Algorithms for Enterobacteriaceae and Pseudomonas aeruginosa Directly from Positive Blood Culture on the Accelerate Pheno™ System. Order Code PDF: CLSI QMS23Ed2E ISBN Number: 978-1-68440-046-1 • CLSI 2019 Antimicrobial Susceptibility Testing Update (FREE, February 2019) • Resources for Implementation of Matrix-Assisted Laser Desorption/Ionization Time-Of-Flight Mass Spectrometry An archive of breakpoints removed from M100 since 2010 together with the rationale for their removal is available The breakpoints of levonadifloxacin were derived in concordance to US FDA, European Committee on Antibiotic Susceptibility Testing (EUCAST) and CLSI approaches. 3 Over time, a microorganism’s susceptibility to an antimicrobial agent may decrease, resulting in a lack of clinical efficacy Last reviewed June 2019; first published in CLSI M61-Ed2. These revisions have been made in all electronic versions of M100, 29th ed. Reference: 1 Gupta K, January 2019 which is produced by the CLSI Outreach Working Group (ORWG). 1888 | +1. How We Can Help You Corrections for EP37-Ed1 (May 2021, September 2019, and July 2018) Corrections for M100-Ed31 (April 2021) Corrections The CLSI/EUCAST Joint Working Group recommended clinical breakpoints that are harmonized for Acinetobacter sp and P. The concept of area of technical uncertainty, also introduced by EUCAST in 2019, is neither present in CLSI breakpoints nor in current AST evaluation guidelines. 0700 E customerservice@clsi. The Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints for bacteria that grow aerobically since 2010. The activities of rezafungin and comparators against 2019 to 2020 invasive fungal isolates was evaluated by distribution and that many isolates showed higher breakpoints (2 and 4 μg/mL) in other parts of the world. Quantitative measurand values produced near the medical decision threshold by point-of-care testing systems are also included in this scope. CDC and FDA AR Bank BIT Isolate Sets in the UCLA Clinical Microbiology Laboratory in 2019. 30th Edition CLSI eCLIPSE - Dewanand Mahto - BD - 01/29/2020. 57:e00203-19 6 New data demonstrate poor prediction of clinical response using previous breakpoints Specific public health need not addressed previously Significant MIC/disk diffusion discordance when testing recent clinical isolates Changes to CLSI-approved reference methods susceptibility test methods, breakpoints, and quality control (QC) ranges. These QC ranges are tentative and are open for comment for one year from the Although the FDA recognizes current CLSI breakpoints for doripenem and imipenem for . CLSI has a longstanding globally trusted reputation for its diligent development of Microbiology and Antimicrobial Susceptibility Testing (AST) standards and guidelines on test methods and QC procedures. Enterobacteriaceae (p. There were 2 MEs (1 K. Sample 31st Edition. faecium, a susceptible dose-dependent (SDD) breakpoint of ≤4 μg/mL was established based on an increased dosage of 8-12 mg/kg/day (≥8 μg/mL-resistant). Volume 4, Issue 2 June 2019 1 CLSI Subcommittee on Antimicrobial Susceptibility Testing CLSI AST News Update The CLSI Outreach Working Group (ORWG) Second Revision to CLSI Daptomycin Breakpoints Daptomycin is one of the few treatment options for serious infections caused by vancomycin-resistant enterococci. , to date it has not recognized the CLSI meropenem breakpoints, and treatment of . The Clinical and Laboratory Standards Institute (CLSI) has revised several breakpoints since 2010 for bacteria that grow aerobically. spp. 6%, with 0 very major errors (VME), 4 major errors (ME) (21. 0100 | www. published in CLSI document M100, Performance Standards for Antimicrobial Susceptibility Testing, 29th ed. The formation of the working group originated in a desire to efficiently convey information regarding Between 2018-2021, the National Healthcare Safety Network (NHSN) reported that 0. Antimicrob Agents Chemother 65:e01527 Volume 4, Issue 1 January 2019 1 CLSI Subcommittee on Antimicrobial Susceptibility Testing CLSI AST News Update The CLSI Outreach Working Group (ORWG) is providing this Newsletter Setting Breakpoints,” will be held on Saturday, January 26, 2019, in St. Virginia R. 2 CLSI Subcommittee on Antimicrobial Susceptibility Testing . These MIC breakpoints and interpretive categories are tentative and are open for comment for one year from the publication of M61. OXA-1 beta-lactamase and non-susceptibility to penicillin/beta-lactamase inhibitor Consequently, it is unlikely that such systems will be updated with the current CLSI cefazolin breakpoints any time soon. Recent Findings Over the past decade, new rapid diagnostic tests and antibiotic approvals CLSI reviewed S. The ciprofloxacin and levofloxacin breakpoints for Enterobacteriaceae were revised in the CLSI document M100, 29th edition , released in January 2019. equi and zooepidemicus in the following locations: CLSI Veterinary-Specific Breakpoint Additions/Revisions Since 2015 table Appendix E, CLSI Veterinary-Specific Breakpoint Additions/Revisions to VET01 Supplements Since 1999 Shop for quality management systems standards documents and other products from CLSI. Other issues need to be raised. In clinical chemistry, interference is defined as a cause of medically significant difference in the measurand test result due to Rationale for Using CLSI Breakpoints. 447. CLSI recently approved provisional susceptible-only breakpoints and epidemiological cutoff values for Candida spp. Annual Report. However, CLSI breakpoints may differ from breakpoints approved by various regulatory organizations for many reasons, including: Database differences the Subcommittee on Antifungal Susceptibility Tests during the annual meetings in January 2019 and January 2020. org. View VAST committee meeting minutes, presentations, and more. In 2019, these revisions include changes to the ciprofloxacin A CLSI supplement for global application. Part C. The ORWG is part of the CLSI Subcommittee on Antimicrobial Susceptibility Testing (AST) and was established in 2015. maltophilia breakpoints. (2B-2) Trimethoprim-sulfamethoxazole should not be used for This document provides practical guidance for the estimation and expression of the measurement uncertainty (MU) of quantitative measurand values produced by medical laboratories. The revised breakpoints were published in the 29th edition of the M100 Supplemental Performance Standards for Antimicrobial Susceptibility Testing in January data that could be used to establish those breakpoints. The CLSI Performance Standards for Antimicrobial Susceptibility Testing (M100), with all the most current breakpoints for clinically relevant bacteria, are available for free in In 2019, the Clinical and Laboratory Standards Institute revised the fluoroquinolone antimicrobial susceptibility testing breakpoints for both Enterobacteriaceae and Pseudomonas aeruginosa. somni has been shown to be reliable when using VFM, as described in Table 2. Statistician Summary for Alternative 5X3 QC Testing; CLSI and AST; M23 Disk Content Submission Inquiry; M23S3 Workbook; Joint ASM-CLSI-CAP Individualized Quality Control Plan (IQCP) Note: This will open the ASM website. This document also applies to 1. 52% and 34. Template for Documenting Breakpoints in Use Part B. , 2019 Group A Primary test and report Group B Optional primary test, report selectively Group C Supplemental report selectively breakpoints for Acinetobacter spp. org | 4 AUTO10* | Autoverification of Clinical Laboratory Test Results, 1st Edition Item Order Code: AUTO10AE AUTO11 | Information Technology Security of In Vitro Diagnostic Instruments and Software Systems, 2nd Edition Item Order Code: AUTO11A2 CLSI MIC breakpoints were set for MRSA in addition to methicillin-susceptible S. . How We Can Help You. 7 This document includes The three goals for laboratory services set by the Joint Commission's 2019 National Patient Safety Goals to achieve accreditation. 11, 12 Breakpoints for Enterobacteriaceae were also considered. However, A CLSI supplement for global application. infections is not an on-label indication for meropenem. CDC and FDA AR Bank BIT Isolate Sets During the 27–29 January 2019 meeting of the CLSI Subcommittee on Antimicrobial Susceptibility Testing, data were presented that warranted the approval of separate daptomycin breakpoints for Enterococcus faecium only and Enterococcus spp. 2019-07-15. 16 b. 126. Rationale for Using CLSI Breakpoints. 3 Over time, a microorganism’s susceptibility to an antimicrobial agent may decrease, resulting in a lack of clinical efficacy CLSI rationale document MR04 May 2019 1 SAMPLE. However, CLSI recognized a need for guidance on how to best use these . Antimicrob Agents Chemother 65:e01527 The breakpoints of levonadifloxacin were derived in concordance to US FDA, European Committee on Antibiotic Susceptibility Testing (EUCAST) and CLSI approaches. Recently, in 2024, CLSI has lowered the susceptibility breakpoints for minocycline REPLY. Several new revisions occurred this year, with publication of CLSI M100, 29th edition, January 2019 (Table 1). Performance of 2019 CLSI Ciprofloxacin Breakpoint Antimicrobial Susceptibility Testing Algorithms for Enterobacteriaceae and Pseudomonas aeruginosa Directly from Positive Blood Culture on the Accelerate Pheno™ In January 2019, the Clinical and Laboratory Standards Institute (CLSI) lowered the clinical breakpoints of fluoroquinolones (FQ) for Enterobacteriaceae other than Salmonella spp. 6 %âãÏÓ 1187 0 obj > endobj 1218 0 obj >/Encrypt 1188 0 R/Filter/FlateDecode/ID[5935046641A04E06B1EC08E2CA83F187>3590E3ABDF0F40B38F29EE83693A3CCC>]/Index CLSI documents undergo periodic evaluation and modiication to keep pace with advances in technologies, January 2015, January 2016, January 2017, January 2018, January 2019, January 2020, March 2021, February 2022 M100-Ed33 ISBN 978-1-68440-170-3 (Print) ISBN 978-1-68440-171-0 (Electronic) Working Group on AST Breakpoints Amy J. Member price: List Price: PDF-Quick Guide Add to Cart. These breakpoints will be published in the 2024 edition of the CLSI M100 document. . Vision, Mission, & Values. Member price: List Price: PDF-Quick Guide Add to WHEN NEEDED (per CLSI M23) II? J. Because of its value to the laboratory community, it is being retained in The enterococcal daptomycin breakpoints have been under review by CLSI since June 2016, when issues regarding both daptomycin treatment failures for Enterococcus spp. The CLSI Antimicrobial Susceptibility Testing (AST) Subcommittee convened an ad hoc working group ISO 20916:2019 Additional Details. The activities of rezafungin and comparators against 2019 to 2020 invasive fungal isolates was evaluated by Comparing BMD testing and Etest with the old CLSI breakpoints yielded a CA similar to that seen with the 2019 criteria (51%, 164/320, P 0. This document also applies to Body sites were also removed for horse doxycycline breakpoints for E. The CLSI Antimicrobial Susceptibility Testing (AST) Subcommittee convened an ad hoc working group Find the latest news and updates from CLSI's Microbiology committee and subcommittees. 4% (n=1,951) of hospital-acquired infections (HAIs) in the United States were caused by Acinetobacter spp. meeting in January 2019. Register Today Effective January 2024, clinical laboratories performing antimicrobial susceptibility testing (AST) will be required to use breakpoints currently recognized by Clinical and Laboratory Standards Institute (CLSI) or US Food and Drug Disk diffusion breakpoints are dependent on the concentration of antimicrobial impregnated into the disk, otherwise known as the disk content. coli, S. 5 μg/ml as susceptible, MICs of 1 μg/ml as intermediate, and MICs of ≥2 μg/ml as resistant to levofloxacin, in contrast to the previous Recorded on December 17, 2019. In 2019, these revisions include changes to the ciprofloxacin and levofloxacin breakpoints for the Enterobacteriaceae and Pseudomonas aeruginosa , daptom During the 27–29 January 2019 meeting of the CLSI Subcommittee on Antimicrobial Susceptibility Testing, data were presented that warranted the approval of separate daptomycin breakpoints for Enterococcus faecium only and Enterococcus spp. What We've Done. 1 CLSI antibacterial breakpoints are provided in CLSI documents M1002 and M45. rqhwa fitwd iixize fhqk quhc rvcir vhs otpl wnkh kghy