Researchers have developed a new method to quickly identify fungal skin infections caused by dermatophytes by detecting the unique smells (volatile compounds) they produce. Instead of waiting days or weeks for culture-based tests, this approach uses advanced chemical analysis to create a fingerprint of the fungus based on its odor. The study analyzed 47 different dermatophyte strains and found that each species and even individual strains have distinctive chemical signatures, which could one day allow doctors to diagnose infections rapidly using portable devices similar to electronic noses.