In response, the U.S. Centers for Disease Control and Prevention (CDC) has issued a warning for travelers headed to China and other countries dealing with outbreaks, including Bolivia, Kenya, Madagascar, Mauritius, Mayotte, Réunion, Somalia and Sri Lanka. Chikungunya can cause serious pain, especially in the joints.

The U.S. Centers for Disease Control and Prevention has issued a travel warning following an outbreak of a mosquito-borne illness called chikungunya in China. The CDC's warning centers on Guangdong Province, where the outbreak has exceeded 7,000 confirmed cases since June 2025, according to Chinese health officials.