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.

Chinese authorities have taken measures this week to try to curb the spread of chikungunya, a virus that often causes fever and joint pain. As of Wednesday, the government reported there had been more than 7,