The state health department says a 54-year-old St. Louis County man has the state's first case of West Nile virus this summer.

The St. Louis Post-Dispatch reports that the man was hospitalized but is now recovering after contracting the mosquito-borne virus in mid-August.

The virus was far more prevalent in Missouri in 2012, affecting 21 people last summer. Cases are also down significantly nationwide.

State health officials also reported a probable case of dengue fever in a 27-year-old woman from St. Louis County. Dengue is also transmitted by mosquitoes and is most common in tropical regions. The woman did not become infected in Missouri.

David McNew, Getty Images