********************************************
Members of the public should stay alert to the potential hazards of mosquito-transmitted diseases and maintain proper anti-mosquito measures with the approach of the rainy season.
A spokesman for the Food and Environmental Hygiene Department (FEHD) said today (March 16) that the monthly average ovitrap index for February had risen slightly to 0.2%, from 0% in January.
The ovitrap indices reflect the prevalence of Aedes albopictus, a mosquito vector for dengue fever transmission.
Of the 38 areas surveyed in February, positive ovitrap indices were recorded in three areas – 2.8% in Cheung Chau; 1.8% in Cheung Sha Wan and in Tin Shui Wai.
As for port areas, the average ovitrap index also rose slightly from 0% in January to 0.1% in February.
"Although the indices are very low, preventive measures should not be relaxed as the rainy season is round the corner and the humid and warm weather is conducive to mosquito breeding. Dengue cases are also prevalent in our neighbouring places," the spokesman said.
Aedes albopictus can breed in very small water bodies. Surface channels, discarded containers, sand traps and abandoned tyres all provide breeding grounds for mosquitoes if they are not properly handled.
He 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.
The spokesman said 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; clear drains and surface channels to prevent blockage; fill up all defective ground surfaces, and drill large holes in unused tyres.
Travellers are advised to take the following precautionary measures when visiting areas affected by mosquito-borne diseases during the Easter 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, March 16, 2010
Issued at HKT 15:51
NNNN
