Press Release

Public advised to guard against dengue fever

February 20, 2004

In view of the recent increase in the number of dengue fever cases in Indonesia, the Department of Health today (February 20) called on members of the public, particularly travellers, to guard against the disease.

A spokesman for the department said, "Dengue fever is an endemic disease in Southeast Asian countries. The best way to prevent dengue fever while visiting these places is to avoid mosquito bites."

He urged travellers to take the following preventive measures:

• wear long-sleeved tops and trousers;
• use insect repellent over the exposed parts of the body; and
• use mosquito screens or nets when rooms are not air-conditioned.

The spokesman said that anyone feeling unwell after returning from their trip should consult a doctor as soon as possible and provide details of their travel to the doctor.

The latest information on infectious diseases, including dengue fever, in other places can be found under "Outbreak News" on the department's Hong Kong Travellers' Health Service website This link will open in a new windowhttp://www.info.gov.hk/trhealth. Travel agents, tour guides and travellers can visit the website for the latest news and advice on preventive measures.

"The dengue virus is transmitted through mosquito bites. Symptoms of dengue fever include fever, severe headache, muscle and joint pain, eye pain, nausea, vomiting and skin rash. In severe cases, the patient may present with bleeding and shock, and can die from the disease," the spokesman said.

"At present, there is no effective vaccine against dengue fever. The best way to prevent dengue fever is to eliminate stagnant water, where mosquitoes can breed, at home, school and the workplace."

In 2002, 24 imported cases and 20 local cases were recorded in Hong Kong while in 2003, there were 48 imported and one local case.

The six dengue fever cases confirmed so far this year were all imported cases. "Hong Kong is still under the potential threat of dengue fever. It is essential that we remain vigilant in preventing the disease," the spokesman added.

To prevent mosquito breeding, the public should:

• put all used cans and bottles into dustbins with covers;
• change water for plants at least once a week, leaving no water in the saucers underneath flower pots;
• cover tightly all water containers, wells and water storage tanks; and
• keep all drains free from blockage.

For more information about dengue fever, please call the department's health education hotline 2833 0111 or visit the website This link will open in a new windowhttp://www.cheu.gov.hk.