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The public should step up anti-mosquito measures and stay alert to the risk of mosquito-transmitted diseases as the current rainy season is most favourable for mosquito breeding, a spokesman for the Food and Environmental Hygiene Department (FEHD) said today (July 20).
The call came following a rise in the monthly average ovitrap index for June to 11% from 9.5% in May. The ovitrap indices reflect the prevalence of Aedes albopictus, a mosquito vector for dengue fever transmission.
The inter-departmental anti-mosquito response mechanism has been activated in three districts which recorded readings above the alert zone of 20% - namely Kwun Tong Central (21.4%), Ho Man Tin (20.4%) and Chai Wan West (20%).
"The departments concerned have stepped up inspection and measures to enhance environmental hygiene conditions in areas under their ambits. The aim is to eliminate existing and potential mosquito-breeding grounds in addition to the regular weekly programme," the spokesman said.
"The FEHD will also closely monitor the situation of other areas, and strengthen control measures whenever necessary."
As for port areas, the average ovitrap index also rose from 0.6% in May to 1.6% in June.
Aedes albopictus can breed in very small water bodies. The spokesman advised the public and estate management bodies to scrub all drains and surface sewers and limewash them with alkaline detergent compound at least once a week to remove any mosquito eggs. They should also keep the drains free from blockage and fill up all depressions to prevent puddles.
People should inspect their homes and surroundings to remove potential breeding grounds; scrub vases and pot plant saucers at least once a week; properly dispose of containers such as soft drink cans and lunch boxes; and drill large holes in unused tyres.
"After rain, they should remove water from balconies, rooftops and courtyards immediately," the spokesman added.
Travellers are strongly advised to take the following precautionary measures when visiting areas affected by mosquito-borne diseases during the summer holidays:
* Wear light-coloured, long-sleeved clothes and trousers;
* Use insect repellent on exposed parts of the body when going out; and
* Use mosquito screens or nets when the room is not air-conditioned.
Travellers returning from these places should seek medical advice if they have symptoms such as fever, severe headache or muscle and joint pain. They should also inform their doctor of their travel history.
The ovitrap indices and information on anti-mosquito measures under the Anti-Mosquito Weekly Inspection Programme are available on the department's website (www.fehd.gov.hk).
Ends/Tuesday, July 20, 2010
Issued at HKT 16:05
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