The mosquito-borne disease is sweeping through a province in southern China, which is taking strict measures to quash the outbreak.

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.

A mosquito-borne virus outbreak in China has passed 10,000 cases and is now spreading beyond its borders, with Taiwan confirming