A comprehensive report on the 1st Swiss-EUCAST Antimicrobial Susceptibility Testing (AST) Meeting.

Standardized phenotypic antimicrobial susceptibility testing remains essential, but molecular and genomic methods enhance speed and mechanistic insights, as discussed at the Swiss-EUCAST AST Meeting.

• Why it matters: Accurate detection of antimicrobial resistance is critical for effective treatment, yet evolving resistance mechanisms and new technologies create diagnostic challenges that need addressing.
• What they did: Over 100 experts examined limitations of genotype-phenotype prediction, the importance of EUCAST standards, and the potential of rapid phenotypic tests and whole-genome sequencing through discussions on various pathogens.
• The result: Findings emphasize that phenotypic ASTs will stay as a clinical standard, while molecular and genomic approaches provide faster results and deeper understanding, guiding future diagnostic strategies.