According to Hong Kong’s Centre for Health Protection, 3 laboratory-confirmed locally acquired cases of chikungunya have been reported since late October 2025 in Wong Tai Sin (2 cases) and Kwai Tsing (1 case) districts. Hong Kong has never reported locally acquired chikungunya cases before these infections. Health authorities have identified at least two distinct transmission sources—a cluster at Fung Tak Estate in Wong Tai Sin and a separate case in Tsing Yi (Mount Haven area) with connections to Sheung Wan. This emergence follows a large outbreak in neighboring Guangdong Province, which reported over 12,400 cases from July through October 2025. Hong Kong has also recorded 52 imported chikungunya cases in 2025.
Most affected districts:
– Wong Tai Sin (Fung Tak Estate area)
– Kwai Tsing (Tsing Yi – Mount Haven area)
– Connections to Sheung Wan
Keep in Mind:
– Many chikungunya infections are asymptomatic or mild, meaning the actual number of people infected is likely higher than the confirmed case count
– Chikungunya-transmitting mosquitoes can bite throughout the day
– Peak mosquito activity occurs in the early morning, late afternoon, and evening
– Symptoms typically include sudden onset of fever and severe joint pain, often accompanied by muscle pain, headache, nausea, fatigue, and rash
– Joint pain can persist for weeks or months in some cases
Vaccination and Prevention
VIMKUNYA™ Chikungunya Vaccination should be considered for travelers aged ≥ 12 years with a prolonged stay ≥ 6 months in Hong Kong or affected areas.
All travelers should observe strict insect precautions:
– Use EPA-registered insect repellents containing DEET, picaridin, or oil of lemon eucalyptus
– Wear long sleeves and pants, especially during peak mosquito activity hours (early morning, late afternoon, and evening)
– Stay in accommodations with air conditioning or window screens if possible
– Use mosquito nets if sleeping in areas without screens
– Apply permethrin to clothing and gear for added protection
– Be vigilant throughout the entire day, as mosquitoes that transmit chikungunya are active during daylight hours
Travelers visiting Wong Tai Sin, Kwai Tsing (particularly Tsing Yi), or Sheung Wan districts should be especially diligent with mosquito protection throughout the day.
Learn more about Chikungunya and Travel Health Risks.
