A fungal organism, normally part of human upper aerodigestive tract flora. It may become pathogenic (creating a disease state) when there is a disturbance in the balance of other normal organisms. Such an imbalance may occur due to use of steroids, either taken by mouth or inhaled, as for asthma. Other causes of candida albicans overgrowth include use of broad-spectrum antibiotics, and/or immunosuppression. The resulting disease state in the upper aerodigestive tract may cause hoarseness or an outbreak of thrush.