Oral thrush is an infection in which the fungus Candida albicans accumulates in the mouth.
It's common in people with immune deficiency and those who use steroid sprays for asthma.
Using an extreme example, such as a person with
HIV/
AIDS, Candidiasis begins in the oral cavity, then has escalating symptoms in the esophagus and descending into the gastrointestinal tract, finally into organ mycosis and when in the blood system, it is finally called Candida sepsis.