Taiwan has confirmed its first chikungunya fever case this year, linked to a major outbreak in southern China’s Guangdong province. The infected woman had traveled to Foshan, where over 8,000 cases have been reported recently, according to Xinhua.

The virus, spread by mosquitoes, causes fever, rash, and joint pain. The outbreak grew rapidly due to low immunity and heavy rains that helped mosquitoes breed. Chinese authorities have responded with strict measures, including fines and fogging.

Though cases in Foshan are now declining, Taiwan’s health agency has raised travel warnings for the region and advises travelers to stay cautious, Xinhua reported.