TAIPEI, Taiwan — Chinese authorities are using nets, spraying insecticide and even deploying drones to fight the mosquito-borne chikungunya virus, which has infected thousands of people.

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 Centers for Disease Control and Prevention (CDC) issued a travel advisory Friday, warning of a chikungunya outbreak in Guangdong province, southeast China, with most cases reported in Foshan city.