Hong Kong issues October third batch of Aedes albopictus trap index data
Hong Kong's Food and Environmental Hygiene Department released the third batch of Aedes albopictus trap index figures for October 2026. The department reported issuing three statutory notices in Kwai Tsing and Yuen Long for standing water, and urged public cooperation in mosquito control to reduce c
Hong Kong's Food and Environmental Hygiene Department (FEHD) on 23 October 2026 released its third batch of Aedes albopictus gravid trap index figures for October. The index monitors the mosquito species that can transmit chikungunya and dengue fever.
FEHD said it continues to implement multi-pronged mosquito control measures, including inter-departmental coordination through special task force meetings with relevant departments and stakeholders such as construction site contractors, schools and property management companies. The department also conducts targeted risk assessments at areas with heavier mosquito infestations, carrying out intensified inspections, removing existing and potential breeding grounds, applying larvicide, fogging to kill adult mosquitoes and setting traps.
Publicity and education efforts involve exhibitions, leaflets and posters to raise public awareness. A rapid notification system alerts subscribed housing estates, urging property managers and residents to stay vigilant and cooperate on prevention and control measures.
During follow-up actions, FEHD issued three statutory notices to responsible parties at a public housing estate in Kwai Tsing district and a park in Yuen Long district, requiring removal of standing water or water containers within a specified period.
The department urged public participation in mosquito prevention, including checking premises for standing water, removing water sources, inspecting household items such as bins, flowerpots, air-conditioner trays and laundry racks weekly, changing vase water and scrubbing interiors weekly, covering water containers, disposing of items that can hold water such as takeaway boxes and empty cans, and scrubbing drains and open channels weekly with alkaline detergent to remove mosquito eggs.
Since August 2025, FEHD has been releasing the latest gravid trap index and density index for individual surveillance areas via press releases, its website and social media as soon as surveys are completed, to enable the public to better grasp the mosquito situation and strengthen control efforts. The department sets traps in 62 surveillance areas across the community, monitoring over a two-week period, collecting traps weekly and calculating indices after the first and second weeks.