Matrix-Assisted Laser Desorption/Ionization Time-of-Flight Mass Spectrometry, commonly known as MALDI-TOF MS, is a powerful technique used for the rapid and accurate identication of microorganisms, including Candida species, in clini­cal microbiology laboratories (Spanu et al. 2012). Clinical samples containing Candida isolates are rst cultured on appropriate growth media. Once isolated, a small amount of the microbial colony is selected for analysis. A matrix, often a mixture of an organic acid and a photosensitive molecule, is applied to the microbial colony. This matrix helps in the desorption and ionization of the microbial proteins upon laser irradiation. The prepared sample is then subjected to a laser beam, which causes the molecules in the matrix to ionize. The ionized molecules, including pro­teins from the microbial cells, are then accelerated in an electric eld and enter the time-of-ight mass spectrometer. In the mass spectrometer, the ionized molecules travel through a ight tube, and the time taken for each ion to reach the detector is measured. The time of ight is directly related to the mass-to-charge ratio of the ions. The mass spectrometer generates a mass spectrum based on the mass-to­charge ratios of the ions. This spectrum represents a unique “ngerprint” of the microbial proteins present in the sample. The acquired mass spectrum is compared to a reference database containing mass spectra of known microorganisms, includ­ing Candida species (Timmins etal. 1998). The software uses algorithms to match the observed spectrum with the closest reference spectrum in the database. Based on the comparison, the MALDI-TOF MS system provides a rapid and accurate identi­cation of the Candida species present in the sample. The result is typically reported as a condence score or a probability value (Timmins etal. 1998).