Anthony Fauci recovering after hospitalization for West Nile virus

Dr. Anthony Fauci, the former director of the National Institute of Allergy and Infectious Diseases, was hospitalized with a case of West Nile virus and is now recovering at home, a spokesperson said.

Fauci is expected to make a full recovery, the spokesperson told ABC News in a statement.

West Nile virus is the leading cause of mosquito-borne disease in the continental United States, according to the CDC.

Mosquitoes typically become infected with the virus after feeding on infected birds and then spread it to humans and other animals, according to the Centers for Disease Control and Prevention. Cases typically begin rising in July and are highest in August and September, CDC data shows.

Several health departments in the U.S. say they have detected West Nile virus in mosquito samples this year. At least 216 cases of West Nile virus have been detected in 33 states, the CDC reports in it's latest figures.

The majority of people with the virus do not have symptoms, but about one in five will experience fever along with headaches, body aches, joint pain, diarrhea, vomiting or a rash. Most symptoms disappear but weakness and fatigue may last for weeks or months.

This is a developing story. Check back for updates.