The monthly average ovitrap index for July fell to 13.1% from 14.2% in June. The Food & Environmental Hygiene Department said today all 38 areas surveyed recorded positive ovitrap indices ranging from 1.9% to 30.8%.

Readings in eight areas fell into the 20% to 40% alert zone. They were Sham Shui Po East (30.8%), Tin Shui Wai (29.1%), Ho Man Tin (27.3%), Lek Yuen (25.5%), Wong Tai Sin Central (24.6%), Kwai Chung (22.6%), Ma On Shan (20.8%) and Kwun Tong Central (20.7%).

The inter-departmental anti-mosquito response mechanism has been activated in these districts. Government departments have enhanced inspections and mosquito-elimination efforts.

The index for port areas also fell from 1.6% in June to 0.8% in July.

People should stay alert as the current rainy season is most favourable for mosquito breeding. Travellers should take precautions when visiting areas affected by mosquito-borne diseases during the summer holidays.

Click here for ovitrap indices and anti-mosquito measures or call 2868 0000.