A yeast that reproduce by budding and does not form pseudohyphae. Colonies are small, white to cream colored, pasty and smooth. It has worldwide distribution and is common. It has been isolated from the gastrointestinal tract of healthy men and women, animals and birds. It can cause infection in susceptible individuals. Susceptible individuals include those with immunological diseases; those that have had prolonged treatment with antibiotics, corticosteroids, or cytotoxic drugs; and those that have diabetes.