Hong Kong's First Local Chikungunya Fever Case Confirmed

The Government of the Hong Kong SAR's Center for Health Protection (CHP) of the Department of Health announced that one locally acquired case of chikungunya fever (CF) has been recorded in Hong Kong, marking the first case in the region.

The patient is now in stable condition, but has four household contacts who are currently asymptomatic and under medical surveillance.

As of October 26, 2025, the CHP has initiated appropriate infection control measures in collaboration with various government departments and relevant organizations. These efforts aim to prevent CF from becoming established in Hong Kong and to minimize its impact on public health.

Additionally, Hong Kong has recorded 46 confirmed, imported CF cases this year. None of the CF patients lives near the abovementioned local case.

In response, the Government is enhancing mosquito control efforts to reduce the risk of this mosquito-borne disease from spreading among Hong Kong's over seven million residents. 

The CHP says the public should call 1823 in case of mosquito problems.

As of October 28, 2025, the U.S. CDC has not issued a Travel Health Notice regarding the risk of CF in Hong Kong, but has reported 88 travel-related CF cases in the USA this year.

In Florida, 19 CF cases have been confirmed, most of which are related to visitors from Cuba.

Since there are two chikungunya vaccines in use globally, the United Kingdom Travel Health Pro says vaccination is not usually recommended.

However, vaccination can be considered for individuals aged 12 years and older. In these situations, further expert advice should be considered.

The final decision on vaccination rests with the health professional and the traveler after a detailed risk assessment.