When immune function is weakened, the pathogenicity of is seen as opportunistic. Although oral fungal infections are rare, when they do occur, they are more painful and can occasionally cause tissue damage. The clinical diagnosis can be supported by cytology and tissue biopsies.
Fungal infections may affect anybody, including healthy individuals. People often breathe in or come into touch with fungal spores without becoming ill since fungal infections are widespread in the environment. However, these fungi are more likely to result in an infection in people with compromised immune systems.
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