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.

The mosquito-borne chikungunya is rare in China, but the CDC urges caution and Chinese officials have taken steps compared to its COVID-19 response.