Hong Kong has reported its first imported case of chikungunya fever since 2019, with the patient infected in Foshan, Guangdong province, China, which has experienced a recent outbreak. Guangdong province has recorded approximately 7,000 chikungunya cases as of early August 2025, with most cases concentrated in Foshan. The majority of infections have been mild, and no severe or fatal cases have been reported. In response to the outbreak, local authorities in Guangdong have implemented various mosquito control measures, including releasing mosquito-eating fish and conducting citywide cleanup efforts. Public health officials have also introduced a new feature on the region's mosquito-borne disease map to alert residents and travelers about transmission risks. The Centers for Disease Control and Prevention (CDC) has issued a Level 2 travel alert for China, advising enhanced precautions due to the chikungunya outbreak. Additionally, Hong Kong authorities and Guangdong health officials are closely monitoring the situation to prevent local transmission. The resurgence of chikungunya has prompted Guangdong to reinstate some Covid-era health controls to curb the spread of the virus. Globally, chikungunya infections have reached 240,000 cases, prompting increased international attention and travel advisories.