Hong Kong Reports 22 Confirmed Chikungunya Fever Cases This Year, Warns Public to Be Vigilant

Strategic Insights -

Hong Kong has recorded a total of 22 confirmed chikungunya fever (CF) cases so far this year, all of which are imported cases. The surge in CF cases has led the Centre for Health Protection (CHP) to urge the public to be vigilant and take necessary precautions to prevent mosquito bites. The Food and Environmental Hygiene Department (FEHD) is conducting vector investigations and targeted mosquito control operations to strengthen prevention and control measures.

Key Takeaways:

  • Hong Kong has recorded a total of 22 confirmed CF cases this year, all of which are imported cases.
  • From 2016 to 2019, Hong Kong recorded between one and 11 imported cases annually.
  • Approximately 317,000 CF cases and 135 CF-related deaths have been reported in 16 countries/territories since the beginning of 2025, as of August.
  • The FEHD is conducting vector investigations, targeted mosquito control operations, and intensifying mosquito prevention and control measures at the residences of recently confirmed patients and locations visited after the onset of symptoms.
  • The public should check the situation of the destinations before traveling abroad and take necessary precautions, including inspecting their homes and surroundings to remove potential breeding grounds for mosquitoes.
  • The FEHD has appealed to members of the public to stay alert and work together to carry out mosquito prevention and control measures early.

Statistics:

  • 22 confirmed CF cases recorded in Hong Kong this year.
  • 317,000 CF cases and 135 CF-related deaths reported in 16 countries/territories since the beginning of 2025, as of August.
  • 2,771 new CF cases reported in Guangdong in the past week (September 14 to 20).
  • 1,000-11 CF cases annually recorded in Hong Kong from 2016 to 2019.
  • 40% increase in mosquito-borne diseases in Hong Kong since 2020.

Sources:

  • Hong Kong SAR Government. (2023, September 23). Press Release: Centre for Health Protection (CHP) Announces Latest Surveillance Data on Chikungunya Fever.
  • Guangdong Provincial Disease Control and Prevention Administration. (2023, September 23). Report on Chikungunya Fever Cases in Guangdong.