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.

An outbreak of the mosquito-borne virus in southern China has led to a pandemic-style response as authorities try to contain the spread.

Chikungunya has similarities to the Dengue and Zika viruses. Primarily, all three are spread through the same type of mosquitoes and share symptoms like fever, rash and joint pain, according to ePainAssist. Unlike chikungunya and dengue, Zika can also spread sexually and from mother to fetus.