Cryptococcus gattii is a fungus found in the soil in the warmer regions of the Earth. It's also associated with eucalyptus and other types of trees. As of 1999, it's been found in British Columbia and the Pacific Northwest region of the United States.
Cryptococcus gattii is responsible for a malady called cryptococcosis. The symptoms are cough, fever, headache, tiredness and shortness of breath. In severe cases, the patient can suffer from the growth of fungus throughout the body and an infection of the central nervous system. This can lead to a serious condition called meningoencephalitis, the symptoms of which include changes in the patient's mental state.