FEHD Reports Zero Aedes Albopictus Mosquitoes in February Gravidtrap Survey Across 27 Areas

FEHD releases first batch of gravidtrap indexes for Aedes albopictus in February

The Food and Environmental Hygiene Department (FEHD) today (February 6) released the first batch of gravidtrap indexes and density indexes for Aedes albopictus in February, covering 27 survey areas, as follows:

District

Survey Area

February 2026

First Phase Gravidtrap Index

First Phase Density Index

Central and Western

Central and Admiralty

0.0%

N/A

Southern

Aberdeen and Ap Lei Chau

0.0%

N/A

Deep Water Bay and Repulse Bay

0.0%

N/A

Wan Chai

Tin Hau and Causeway Bay

0.0%

N/A

Kowloon City

Hung Hom and To Kwa Wan

0.0%

N/A

Kai Tak

0.0%

N/A

Kowloon City

0.0%

N/A

Kwun Tong

Kowloon Bay

0.0%

N/A

Kwun Tong Central

0.0%

N/A

Lam Tin and Sau Mau Ping

0.0%

N/A

Yau Tong and Cha Kwo Ling

0.0%

N/A

Wong Tai Sin

Diamond Hill and Tsz Wan Shan

0.0%

N/A

Wong Tai Sin East

0.0%

N/A

Yau Tsim

Tsim Sha Tsui East and King's Park

0.0%

N/A

North

Fanling North

0.0%

N/A

Sha Tin

Sha Tin East

0.0%

N/A

Sha Tin Town Centre and Fo Tan

0.0%

N/A

Tai Wai

0.0%

N/A

Tai Po

Tai Po East

0.0%

N/A

Kwai Tsing

Kwai Chung East

0.0%

N/A

Tsing Yi North

0.0%

N/A

Tsing Yi South

0.0%

N/A

Tsuen Wan

Ma Wan and Sham Tseng

0.0%

N/A

Tsuen Wan West

0.0%

N/A

Tuen Mun

So Kwun Wat

0.0%

N/A

Tuen Mun West

0.0%

N/A

Yuen Long

Tin Shui Wai

0.0%

N/A

Among the first batch of First Phase Gravidtrap Indexes covering 27 survey areas in February, all were 0 per cent, indicating that the distribution of Aedes albopictus mosquitoes was not extensive.

Among these 27 survey areas, all recorded a decrease or remained unchanged as compared to the Area Gravidtrap Index last month (i.e. January 2026), representing that the areas' mosquito infestation improved or maintained a low level.

The eggs of Aedes albopictus can withstand long periods of desiccation and will hatch when the temperature becomes suitable and water is present. Members of the public should continue to take mosquito control measures during winter to eliminate mosquito eggs.

Public participation is crucial to the effective control of mosquito problems. The FEHD appeals to members of the public to continue to work together in strengthening personal mosquito control measures, including:

• tidy up their premises and check for any accumulation of water inside their premises;

• remove all unnecessary water collections and eliminate the sources;

• check household items (those placed in outdoor and open areas in particular), such as refuse containers, vases, air conditioner drip trays, and laundry racks to prevent stagnant water;

• change the water in flower vases and clear the water in saucers of potted plants at least once every seven days;

• properly cover all containers that hold water to prevent mosquitoes from accessing the water;

• properly dispose of articles that can contain water, such as empty lunch boxes and cans; and

• scrub drains and surface sewers with alkaline detergent at least once a week to remove any mosquito eggs.

Starting in August 2025, following the completion of the surveillance of individual survey areas, and once the latest gravidtrap index and the density index are available, the FEHD has been disseminating relevant information through press releases, its website and social media. It aims to allow members of the public to quickly grasp the mosquito infestation situation and strengthen mosquito control efforts, thereby reducing the risk of chikungunya fever (CF) transmission.

Following recommendations from the World Health Organization and taking into account the local situation in Hong Kong, the FEHD sets up gravidtraps in districts where mosquito-borne diseases have been recorded in the past, as well as in densely populated places such as housing estates, hospitals and schools to monitor the breeding and distribution of Aedes albopictus mosquitoes, which can transmit CF and dengue fever (DF). At present, the FEHD has set up gravidtraps in 62 survey areas of the community, with a surveillance period of two weeks. During the surveillance period, the FEHD will collect the gravidtraps once a week. After the first week of surveillance, the FEHD will immediately examine the glue boards inside the retrieved gravidtraps for the presence of adult Aedine mosquitoes to compile the Gravidtrap Index (First Phase) and Density Index (First Phase). At the end of the second week of surveillance, the FEHD will instantly check the glue boards for the presence of adult Aedine mosquitoes. Data from the two weeks of surveillance will be combined to obtain the Area Gravidtrap Index and the Area Density Index. The gravidtrap and density indexes for Aedes albopictus in different survey areas, as well as information on mosquito prevention and control measures, are available on the department's webpage (www.fehd.gov.hk/english/pestcontrol/dengue_fever/Dengue_Fever_Gravidtrap_Index_Update.html#).

Photo source: reference image

Crowd management measures and special traffic arrangements for Mong Kok Flower Market Road area

The Police will implement crowd management measures and special traffic arrangements in the Mong Kok Flower Market Road area from February 7 to 17 to maintain smooth traffic flow and public safety.

A. Crowd management measures

With large crowds expected at the Flower Market before the Lunar New Year, the Police will implement crowd management measures depending on the crowd condition. These measures will apply to Flower Market Road, Yuen Ngai Street, Yuen Po Street and the adjacent service road of Prince Edward Road West, Sai Yee Street, Fa Yuen Street and Playing Field Road. Members of the public are urged to remain patient, follow instructions given by police officers on site, and enter these areas in an orderly manner.

B. Special traffic arrangements

The following traffic arrangements will be implemented from 8am on February 7 to 8am on February 17:

(1) Road closure and traffic diversions

The following roads will be closed, except for vehicles with a permit:

- Flower Market Road;

- Yuen Ngai Street;

- Yuen Po Street; and

- The service road of Prince Edward Road West between Sai Yee Street and Yuen Po Street.

Depending on the traffic and crowd conditions, the following roads may be closed:

- Sai Yee Street between the service road of Prince Edward Road West and Boundary Street;

- Fa Yuen Street between the service road of Prince Edward Road West and Boundary Street;

- Playing Field Road between Tung Choi Street and Sai Yee Street; and

- The service road of Prince Edward Road West between Nathan Road and Sai Yee Street.

During the above road closure period, traffic along westbound Prince Edward Road West near Nathan Road cannot make a U-turn to the service road of Prince Edward Road West.

(2) Suspension of parking spaces

The parking spaces on the following roads will be suspended:

- The metered parking spaces on Fa Yuen Street between the service road of Prince Edward Road West and Boundary Street;

- The metered parking spaces on Tung Choi Street between the service road of Prince Edward Road West and Boundary Street;

- The metered parking spaces on Playing Field Road between Tung Choi Street and Sai Yee Street;

- The motorcycle parking spaces on Tung Choi Street near Playing Field Road;

- The motorcycle parking spaces on Playing Field Road between Fa Yuen Street and Tung Choi Street;

- The motorcycle parking spaces under the Prince Edward Road West flyover between Tung Choi Street and Sai Yee Street;

- The disabled parking spaces on Fa Yuen Street near Boundary Street; and

- The disabled parking spaces on Playing Field Road near Tung Choi Street.

All vehicles parked illegally during the implementation of the above special traffic arrangements will be towed away without prior warning, and may be subject to multiple ticketing.

Depending on the actual traffic and crowd conditions, other traffic control and crowd management measures will be implemented. Members of the public are urged to use public transport services as far as possible. Motorists are advised to exercise tolerance and patience, and to take heed of instructions of the Police on site.

Source: AI-found images