Clinical Identification and Pathogenicity of Candida Species

Candida species constitute a major group of opportunistic fungal pathogens responsible for a spectrum of diseases ranging from superficial mucosal infections to life-threatening systemic candidiasis. Accurate and timely identification of these organisms underpins effective clinical management and relies on a combination of culture-based methods, chromogenic media, biochemical assays, mass spectrometry and molecular techniques. Differentiation among Candida albicans, non-albicans species such as Candida glabrata and Candida tropicalis, and emerging pathogens like Candida auris remains challenging due to overlapping phenotypic traits and the emergence of antifungal resistance. Key virulence determinants include the capacity for morphological switching between yeast and filamentous forms, biofilm formation on medical devices, secretion of hydrolytic enzymes and adaptation to host immune pressures. While C. albicans has long been regarded as the most pathogenic species owing to expanded gene families for adhesins and proteases, non-albicans species are increasingly implicated in invasive infections and exhibit varied resistance profiles. Global surveillance highlights shifting epidemiology, with C. auris outbreaks prompting urgent development of rapid diagnostics and tailored therapeutic strategies. Continued integration of advanced molecular diagnostics and phenotypic susceptibility testing is essential to guide antifungal stewardship and to mitigate the public health burden of candidiasis.

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Clinical Identification and Pathogenicity of Candida Species publication trend

The graph below shows the total number of articles in clinical identification and pathogenicity of candida species across all publications each year (not limited to Nature Index journals).

Technical terms

Chromogenic media: Culture media containing substrates that yield species-specific colony colours, facilitating rapid differentiation of Candida species.

MALDI-TOF MS: A mass spectrometry technique that analyses microbial protein fingerprints to enable rapid species identification.

Biofilm: A structured community of microbial cells embedded in an extracellular matrix, contributing to antifungal tolerance and persistence on surfaces.

Morphogenesis: The reversible transition of Candida between yeast and filamentous forms, a critical determinant of tissue invasion and virulence.

Antifungal susceptibility: The degree to which a fungal isolate is inhibited or killed by antifungal agents, guiding clinical therapy choices.

References

1. Evaluation of CHROMagar Candida Plus for the detection of C. auris with a panel of 206 fungal isolates and 83 colonization screening skin-swabs. Microbiology Spectrum (2024).
2. Candida dubliniensis in Japanese Oral Microbiota: A Cross-Sectional Study of Six Geographic Regions in Japan. Microorganisms (2024).
3. Similarities and Differences among Species Closely Related to Candida albicans: C. tropicalis, C. dubliniensis, and C. auris. Cellular Microbiology (2022).