![]() |
On July 22, the World Health Organization (WHO) issued an alert on the risk of a chikungunya epidemic — a mosquito-borne fever-inducing virus — urging countries to take adequate preparations to prevent large-scale outbreaks.
According to Diana Alvarez, head of WHO's arbovirus team, 119 countries and regions have reported transmission of the chikungunya virus, putting approximately 5.5 million people at risk, posing significant pressure on health systems worldwide.
In Foshan, a city in Guangdong province, south China, the first imported case was detected on July 8. By July 24, there were over 4,000 confirmed cases. Beijing has also reported sporadic imported cases, with risks persisting due to increasing international exchanges.
At a press conference held by the National Health Commission on July 23, Duan Leilei, a researcher from the Chinese Center for Disease Control and Prevention (China CDC), clarified that although local transmissions had occurred in some southern cities, there is no evidence of human-to-human transmission.
He Jianfeng, chief scientist in Infectious Disease Control at the Guangdong provincial CDC, explained that the primary vector responsible for spreading the chikungunya virus in Guangdong is the Aedes albopictus mosquito.
Chikungunya fever symptoms include fever, rash, and joint pain. Patients admitted to the Lecong Hospital in Shunde district, one of Foshan's designated treatment centers, exhibited these typical symptoms. Most patients experienced moderate fevers, rashes mainly appearing on their chest, limbs, face, and palms, and intense joint pains primarily affecting the fingers, wrists, and ankles.
Although severe complications are rare, newborns, the elderly, and those with chronic diseases like hypertension, diabetes, or heart conditions face higher risks.
Preventing chikungunya fever hinges on eliminating mosquitoes through various means, such as using household insecticides. Installing window screens, using bed nets or electric mosquito repellents or coils and applying insect repellents when outdoors will also help prevent getting bitten by the insects. Wearing light-colored long-sleeve clothing is another precaution, as mosquitoes are attracted by bright colors.
People are also advised to regularly empty water containers inside and outside their homes, including planters and roof rainwater gutters, to disrupt mosquito breeding grounds.
"If you develop high fever, severe joint pain, or a rash, especially if you've been bitten by mosquitoes or traveled to endemic areas, seek medical attention immediately," Duan said, adding that with vigilance and proactive measures, the spread of chikungunya fever can be combated, safeguarding public health.