Skip to main content Skip to footer content Disable Carousel Autoplay
Specialty Areas

Microbiology

Setting the Standard

Global Leader in Microbiology

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. Additionally, CLSI annually creates and revises AST breakpoints to meet global public health challenges related to antimicrobial resistance.

CLSI is a longstanding collaborating center with the United Nation’s World Health Organization (WHO), the International Organization for Standardization (ISO, and the American National Standards Institute (ANSI), as the only organization specifically designated for the creation, revision, and translation of medical laboratory standards. 

CLSI is a highly respected organization that bases its standard development activities on an open and transparent consensus-based process that includes all affected stakeholders.

Learn More
Expertise

A Community of Experts
in Clinical Microbiology

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. Volunteers for the AST Subcommittee come from microbiology laboratories, government agencies, and pharmaceutical and diagnostic microbiology industries. 

Expert Panel on Microbiology (MICRO)
Antimicrobial Susceptibility Testing Subcommittees
Microbiology Products

The Gold Standard for Test Methods and Quality Control

CLSI’s library of Microbiology standards and AST guidelines establish vital performance criteria and best practice guidelines for use in the clinical microbiology laboratory field. 

Shop Now
CLSI M100™

Performance Standards for Antimicrobial Susceptibility Testing

CLSI annually creates and revises AST breakpoints to meet global public health challenges related to antimicrobial resistance. Learn more about the latest updates for CLSI M100™.

Latest Microbiology Insights

View All
Antimicrobial Susceptibility Testing
A Week for Collaboration and Consensus: CLSI’s January 2024 Meetings
CLSI’s Committees Weeks are an opportunity for the CLSI expert community to meet and connect with colleagues for a week of information sharing, consensus building, networking, and camaraderie. Committees Weeks are where the hard work behind CLSI’s standards and guidelines takes place—committees and subcommittees, following CLSI’s voluntary consensus process, work together on new and revised CLSI standards in development.
Antimicrobial Susceptibility Testing
Critical Standards Added to CLSI’s Micro Free
Antimicrobial Susceptibility Testing
AST and Antimicrobial Stewardship for the Veterinary Profession
Selecting antimicrobial agents for preventing, controlling, and treating bacterial disease in animals requires weighing multiple factors. These include likelihood of pathogenic bacteria being present, expected response to therapy, availability of effective formulations, logistics of administering drugs in animals, cost, and legal restrictions. Use of AST can provide evidence related to the expected response to therapy when AST is applied judiciously and interpreted appropriately.
Get Involved

Share Your Expertise

Join our community of industry leaders who volunteer their experience and knowledge to drive innovation and excellence in laboratory practices.

Get Involved

Microbiology Projects in Progress

Please note, the publication dates are subject to change based on document development activities.

Filter

Sign Up for our Newsletter

You'll receive the latest updates on new standards, guidelines, and educational resources, as well as expert insights to help enhance your laboratory's performance and compliance. 

Sign Up