Valley fever (also called coccidioidomycosis or “cocci”) is a disease caused by a fungus that grows in the
soil and dirt in some areas of California and the southwestern United States. People and animals can get sick when they breathe in dust that contains the Valley fever fungus. This fungus usually infects
the lungs and can cause respiratory symptoms including cough, fever, chest pain, and tiredness.
In California, the number of reported Valley fever cases has greatly increased in recent years. In fact, Valley fever cases tripled from 2014 to 2018.