The Centers for Disease Control have been warning of an American outbreak of chikungunya since December when it started growing in the Caribbean. At the time, they told travelers to be aware of the disease and be observant as they travel through the area. As so many bugs and vector-borne diseases spread through travel, the CDC issued a statement saying they expected the disease to come to the United States. The fourth Case Of Mosquito-Borne Chikungunya Fever Confirmed In Florida « CBS Miami.