Dengue Fever Cases Rise: Public Urged to Enhance Mosquito Control and Hygiene Measures

Update on dengue fever

The Centre for Health Protection (CHP) of the Department of Health today (November 8) reported the latest number of dengue fever (DF) cases, and strongly urged the public to maintain strict environmental hygiene, mosquito control and personal protective measures both locally and during travel.

From November 1 to yesterday (November 7), the CHP recorded six imported DF cases. The patients had been to Guangdong Province (Foshan (four cases) and Zhongshan (one case)) and India (one case) during their incubation periods.

As of yesterday, 131 cases of DF, including 127 imported and four local cases, had been recorded in 2024. In 2023, 62 imported cases of DF were recorded.

According to the World Health Organization, the global incidence of DF has markedly increased over the past two decades, posing a substantial public health challenge. In 2023, ongoing transmissions, combined with an unexpected spike in DF cases, had resulted in close to a historic high of over 6.5 million cases, and more than 7 300 dengue-related deaths reported in over 80 countries/territories. Since the beginning of 2024, the Americas, including Brazil, Argentina and Mexico, have recorded about 12 million cases, a record number.

The latest surveillance data shows that there is an increase in DF cases noted in some places in Asia (such as Indonesia, Malaysia and Singapore) compared to the same period last year.

According to the Health Commission of Guangdong Province, the number of DF cases recorded in Guangdong Province in the past three months continued to increase. Most of the cases were locally acquired infection. Information from the Guangdong Provincial Center for Disease Control and Prevention further showed that in the past week from October 28 to November 3, more than 1 700 local DF cases were recorded, with the highest numbers of cases recorded in Guangzhou, Foshan, Shenzhen, Zhanjiang and Zhongshan.

In addition, the number of DF cases in Macao has been increasing recently. Since the first local case of this year reported on October 23, eight local cases have been reported in Macao as of yesterday.

Detailed information on the latest DF situation in Hong Kong, as well as neighbouring and overseas countries and areas, has been uploaded to the CHP website (www.chp.gov.hk/files/pdf/df_imported_cases_and_overseas_figures_eng.pdf).

The continued occurrence of DF cases outside Hong Kong, coupled with the frequent travel by residents to and from Guangdong, Hong Kong, Macao and other areas, has resulted in an increased risk of importing DF cases into Hong Kong, posing a risk of local transmission.

"Apart from general measures, travellers returning from areas affected by DF should apply insect repellent for 14 days upon arrival in Hong Kong. If feeling unwell, seek medical advice promptly and provide travel details to a doctor," a spokesman for the CHP said.

The public should take heed of the following advice on mosquito control:

Thoroughly check all gully traps, roof gutters, surface channels and drains to prevent blockage;

Scrub and clean drains and surface channels with an alkaline detergent compound at least once a week to remove any deposited mosquito eggs;

Properly dispose of refuse, such as soft drink cans, empty bottles and boxes, in covered litter containers;

Completely change the water of flowers and plants at least once a week. The use of saucers should be avoided if possible;

Level irregular ground surfaces before the rainy season;

Avoid staying in shrubby areas; and

Take personal protective measures such as wearing light-coloured long-sleeved clothes and trousers, and apply insect repellent containing DEET to clothing or uncovered areas of the body when doing outdoor activities.

​DEET-containing insect repellents are effective and the public should take heed of the tips below:

Read the label instructions carefully first;

Apply right before entering an area with risk of mosquito bites;

Apply on exposed skin and clothing;

Use DEET of up to 30 per cent for pregnant women and up to 10 per cent for children*;

Apply sunscreen first, then insect repellent; and

Reapply only when needed and follow the instructions.

* For children who travel to countries or areas where mosquito-borne diseases are endemic or epidemic and where exposure is likely, those aged 2 months or above can use DEET-containing insect repellents with a DEET concentration of up to 30 per cent.

The public should call 1823 in case of mosquito problems and may visit the following pages for more information: the DF page of theCHPand theTravel Health Service, the latestTravel Health News,tips for using insect repellents, and the CHPFacebook PageandYouTube Channel.

Meeting attendance of members of District Councils in 2024

The Home Affairs Department (HAD) made the following clarifications today (January 2) regarding certain media reports on the meeting attendance of the current-term members of the District Councils (DCs) in 2024:

(1) The current-term DC members were diligent in their work, with over 98 per cent of 470 members having attended all DC meetings or were only absent with the DC's consent; over 90 per cent having attended all committee/working group meetings or were only absent with the DC's consent. Aside from attending DC meetings, each DC member on average attended 28 committee/working group meetings;

(2) all DC members fulfilled the requirement under the Performance Monitoring Guidelines for Members of the DCs (the Guidelines), i.e. attendance rate of not lower than 80 per cent and no DC members were in violation of the requirement; certain reports were incorrect in stating that some DC members were in violation of the Guidelines due to their absence at meetings since absence at an individual meeting was not a violation in itself; and

(3) for the purpose of calculating attendance, the Guidelines stipulate certain reasons for absence that would be consented by the DCs, including sickness and attendance at another meeting or an activity on behalf of the DCs etc. If a DC member were absent from meetings due to the aforementioned reasons with the DC's consent, the absence would not affect his/her attendance rate. If a DC member were absent from meetings due to other reasons (i.e. personal matters), the absence would be counted towards his/her attendance rate.

​The HAD hoped that media outlets and members of the public would have an accurate understanding of DC members' attendance situation at meetings. The current-term DC members' attendance rate at meetings was the highest amongst all previous terms, which fully demonstrated DC members' efforts and work in improving governance at the district level.