ST. LOUIS (AP) — Missouri health officials have reported the state's first case of a mosquito-borne virus that has been spreading to the U.S. from the Caribbean. The St. Louis County Health Department says a resident was infected with chikungunya (chih-kihn-GUHN'-yuh) while traveling in the Caribbean. Chikungunya causes symptoms such as fever and joint pain within a week after a person is bitten by an infected mosquito.