The Housing Department has set up an anti-mosquito action team of 800 people to intensify patrols at public estates after the recent rise in Japanese encephalitis cases in the past month. Lau Kai-hung, deputy director of housing, said patrols had increased from once a month to once a week and would sweep estates, shopping centres and construction sites. The city has three confirmed Japanese encephalitis cases, but none of them occurred in areas under the Housing Department's administration. The special team will be responsible for daily anti-mosquito cleanups at every estate. Other tasks include tidying flower beds, pruning overgrown vegetation, clearing drains and killing mosquito larvae. There will be surprise visits to the department's construction sites to ensure compliance with anti-mosquito measures. The department has ordered 28 mosquito traps. It has also set up a hotline so tenants dissatisfied with the hygiene standard of their living environment can file complaints to the government. Since the hotline at 2712 2712 was set up on June 21, it has received 93 complaints.