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Anti-Fungal Susceptibility Testing: Reviewing the Old and Bracing for the New

Anti-fungal susceptibility testing is not widely available across clinical microbiology labs. Yet the increase in serious fungal infections requiring anti-fungal therapy necessities a better understanding of important resistance mechanisms and interpretation of susceptibility test results. This webinar aims to increase knowledge of anti-fungal susceptibility concepts important for clinical and public health microbiologists at all levels, whether testing is performed in-house or referred. This webinar will review important intrinsic resistance profiles and common anti-fungal resistance mechanisms in human pathogens. Additionally, the use and interpretation of epidemiological cut-offs for patient care will be compared to clinical breakpoints. Finally, recommendations for when to perform anti-fungal susceptibility testing and how to report breakpoints and/or epidemiological cut-offs results will be discussed.

Learning objectives:

  1. Review important intrinsic resistance profiles and common anti-fungal resistance mechanisms of human fungal pathogens.
  2. Compare clinical breakpoints and epidemiological cut-off values and their interpretation for patient care.
  3. Devise ‘when to test’ and ‘how to report’ strategies for anti-fungal susceptibility testing according to internationally recognized best practices.

Webinar Date and Time: Sept. 6, 2023 at 2 pm ET.


Nathan P. Wiederhold, PharmD, FCCP, FECMM, FIDSA
Professor, Department of Pathology and Laboratory Medicine
Director, Fungus Testing Laboratory
University of Texas Health Science Center at San Antonio

Webinar Length: 1 hour.

Audience: Clinical and public health microbiologists working at the bench, supervisor/manager, and director levels.

This is a beginner-level webinar.

Continuing Education (CE) Credit
This webinar is approved for 1.0 P.A.C.E. ® credit. ASM is approved as a provider of continuing education programs in the clinical laboratory sciences by the ASCLS P.A.C.E.® Program. All presentations are recognized by the California Department of Health and Florida Department of Health and qualify for California and Florida CE credit toward license renewal. CE credits can only be claimed by the purchaser (individual sales only).

  • ASM Members (excluding supporting): $35
  • ASM Supporting Members: $47
  • Non-Members: $47

The purchase price includes unlimited access to the webinar recording through Sept. 5, 2024 and continuing education credit for the purchaser.

Not an ASM member? Join now!

Institutional Pricing: For $259, institutions may purchase access and CEs for 10 users.

Please email ASM if you require closed captioning.

Supported in part through educational grants from: