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The public should continue to 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 (August 16).
The call came following a rise in the monthly average ovitrap index to 13% in July from 11% in June. 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 six districts which recorded readings at or above the alert zone of 20%, namely Diamond Hill (25.9%), Tsim Sha Tsui (24.1%), Sheung Shui (22.2%), Tung Chung (22.2%), Ma On Shan (20.4%) and Pok Fu Lam (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 has dropped to 0.8% in July from 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.
Travellers are strongly advised to take precautionary measures when visiting areas affected by mosquito-borne diseases during the summer holidays. For example, they should wear light-coloured, long-sleeved clothes and trousers, and use insect repellent on exposed parts of the body when going out.
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.
Meanwhile, the third phase of this year's Anti-mosquito Campaign will be launched today and run for eight weeks. During the campaign period, relevant government departments and public bodies will step up anti-mosquito operations and publicity activities throughout the territory.
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/Monday, August 16, 2010
Issued at HKT 15:15
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