U.S. health officials are cautioning travelers about a mosquito-borne illness being transmitted in parts of Asia, South America, Africa and the Indian Ocean.

Across the globe, the chikungunya virus has sparked 240,000 cases and 90 deaths in 2025, according to the European Centre for Disease Prevention and Control.

The virus, which is infecting people through bites from Aedes mosquitoes, has been spreading in China’s Guangdong province this summer. Health officials reported the area has seen over 7,000 confirmed cases since June.

The U.S. Centers for Disease Control and Prevention (CDC) this month issued a travel notice for the Guangdon province in China, encouraging travelers to practice enhanced precautions. The agency issued the same notices for other countries where outbre

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