Health Message: Prevention of Dengue Fever

Dear Colleagues and Students,

You may be aware that the number of reported cases of dengue fever in HK has been increasing recently.  To safeguard the health of members of the University, responsible offices have tightened up the control measures for mosquitoes breeding on campus.  Some of the actions are given below for your information.

  • Conducted inspections to identify high-risk areas for mosquito breeding, and cleared potential sources for mosquito breeding
  • Increased the frequency of pest control treatment (e.g. application of larvicidal oil)
  • Urged our contractors to step up their control measures on their responsible working sties through daily communication and will monitor their actions through inspections
  • Will take prompt actions against report of any potential place of mosquito breeding

At present, there is no locally registered dengue vaccine available in HK.  The best preventive measure is to eliminate pockets of stagnant water that serve as breeding sites for mosquitoes, and to avoid mosquito bites.  Hence, we would like to seek your support to the following general measures on preventing mosquito-borne diseases suggested by the Centre for Health Protection (CHP).
Help prevent mosquito proliferation

  1. Prevent accumulation of stagnant water
  2. Change the water in vases once a week
  3. Clear any stagnant water in the saucers under potted plants every week
  4. Cover water containers tightly
  5. Put all used cans and bottles into covered dustbins
  6. Control vectors and reservoir of the diseases
  7. Store food and dispose of garbage properly

Avoid mosquito bite

  1. Wear loose, light-coloured, long-sleeved tops and trousers, and use DEET-containing insect repellent on exposed parts of the body and clothing
  2. Take additional preventive measures when engaging in outdoor activities
  3. Avoid using fragrant cosmetics or skin care products
  4. Re-apply insect repellents according to instructions  

For further information and health advice on Dengue Fever, please visit the website of the CHP ( or refer to the attached poster by CHP.
Should further information is required, please feel free to contact our Winnie Cho by email to This email address is being protected from spambots. You need JavaScript enabled to view it. or phone at 3400-8399.
Thank you.

Chris Leung | Interim Head (Health, Safety & Environment) | Health, Safety & Environment Office