Ovitrap index rises to 2.5%

May 22, 2013

The monthly average ovitrap index for April rose to 2.5% from 0.1% in March, the Food & Environmental Hygiene Department announced today.
 
The ovitrap indices reflect the prevalence of Aedes albopictus, a mosquito vector for Dengue fever transmission.
 
Among the 44 areas surveyed last month, positive ovitrap indices were recorded in 20 areas, ranging from 1.6% to 16.7%, with the highest in Tseung Kwan O.
 
In port areas, the monthly ovitrap index also edged up to 0.1% from zero in March.
 
The department advises people to step up measures against mosquito breeding and stay alert to the risk of mosquito-transmitted diseases as mosquito eggs start to hatch in the rainy season.