Candida albicans is a dimorphic fungus that grows both as yeast and filamentous cells and one of the few species of the Candida genus that cause the infection candidiasis in humans.
Albicans is a common member of human gut flora and is detectable in the gastrointestinal tract in 40% of healthy adults. The Candida antigen tests typically monitors three specific antibodies and the Candida antigen itself: IgG antibodies, IgA antibodies, IgM antibodies.
IgG antibodies
IgG is the predominant antibody formed from secondary exposure to antigen, and reflects a past or ongoing infection. It is produced as IgM antibody levels decrease after primary exposure. IgG activates complement, and assists the phagocytic system to eliminate antigen from the extravascular space. The IgG antibodies represent the major class of human immunoglobulins and are evenly distributed throughout both our intra- and extravascular fluids. Note that specific IgG antibodies may persist for many years after an infection has been eradicated.
Every lab result you’ve ever had, charted and explained.
Healthmatters is a tracker for your lab results. Upload a report from any lab, any country — every marker charted and explained.
Start with my report →All our content is backed by peer-reviewed studies, academic research, and trusted medical sources. We’re committed to accuracy and transparency — see our editorial policy for details.