The United States is warning people traveling to China about chikungunya, a virus that spreads to humans through mosquito bites.

The Centers for Disease Control and Prevention has issued a Level 2 travel notice for people traveling to the country, urging them to "practice enhanced precautions."

The notice, issued last week, says the chikungunya outbreak is in Guangdong Province, with most cases reported in the city of Foshan. In recent weeks, the region near Hong Kong has reported more than 7,000 cases.

"You can protect yourself by preventing mosquito bites, which includes using insect repellent; wearing long-sleeved shirts and pants; and staying in places with air conditioning or that have screens on the windows and doors," the CDC says.

The chikungunya virus was first identified in

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