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Antimicrobial Effectiveness

Antimicrobial Effectiveness

The effectiveness of antimicrobial agents depends on various factors influencing their ability to eliminate microbial populations. Larger microbial populations require more time for complete eradication, emphasizing the importance of population size analysis when evaluating antimicrobial efficacy.Microbial resistance to antimicrobial agents varies significantly. Highly resilient microorganisms include endospores, gram-negative bacteria, and non-enveloped viruses, while prions are exceptionally...

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Related Experiment Video

Updated: Dec 23, 2025

Broth Microdilution In Vitro Screening: An Easy and Fast Method to Detect New Antifungal Compounds

Broth Microdilution In Vitro Screening: An Easy and Fast Method to Detect New Antifungal Compounds

Published on: February 14, 2018

Antifungal Susceptibility Testing: Current Approaches.

Elizabeth L Berkow¹, Shawn R Lockhart², Luis Ostrosky-Zeichner³

¹Mycotic Diseases Branch, Centers for Disease Control and Prevention, Atlanta, Georgia, USA kuu4@cdc.gov.

Clinical Microbiology Reviews

|May 1, 2020

Summary

This summary is machine-generated.

Antifungal susceptibility testing (AFST) is crucial for guiding patient treatment and monitoring drug resistance. Standardized and novel methods are available, but careful interpretation of results is essential for clinical application.

Keywords:

CLSI EUCAST antifungal resistance antifungal susceptibility testing breakpoints epidemiological cutoff value

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Area of Science:

Clinical Microbiology
Mycology
Pharmacology

Background:

Antifungal susceptibility testing (AFST) is gaining importance in clinical microbiology.
It aids in guiding patient therapy, epidemiological studies, and tracking antifungal drug resistance.

Purpose of the Study:

To summarize the current state and importance of antifungal susceptibility testing.
To highlight standardized and commonly used methods, as well as emerging techniques.

Main Methods:

Standardized methods include broth dilution, disk diffusion, and azole agar screening for Aspergillus.
Other common methods are gradient diffusion and rapid automated instruments.
Novel methodologies are under development.

Main Results:

AFST aims to produce reliable Minimum Inhibitory Concentration (MIC) values.
Established methods provide a foundation for current laboratory practices.
Ongoing development promises more efficient and accurate testing.

Conclusions:

AFST is an increasingly vital tool in clinical laboratories.
Laboratories must select appropriate testing methods.
Proper interpretation of in vitro data is critical for clinical decision-making.