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

HK

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

HK

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

2024-11-22 17:30 Last Updated At:17:38

Update on dengue fever

The Centre for Health Protection (CHP) of the Department of Health today (November 22) 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 15 to yesterday (November 21), the CHP recorded seven imported DF cases. The patients had been to Guangdong Province (Jiangmen (three cases), Foshan (one case) and Zhongshan (one case)) and India (two cases) during their incubation periods.

As of yesterday, 150 cases of DF, including 146 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 (WHO), 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 WHO has recorded over 13 million cases, reaching a record number of cases.

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 November 11 to 17, over 800 local DF cases were recorded, with the highest numbers of cases recorded in Foshan, Guangzhou, Shenzhen, Zhanjiang and Jieyang.

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, nine 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.

    Latest developments of regulation on disposable plastic products

    The new regulation on disposable plastic products came into effect on April 22 this year, and the six-month adaptation period has been concluded for a month since October 21. After the adaptation period, the Environmental Protection Department (EPD) has continued its publicity and education efforts as the main focus, supplementing these efforts with enforcement actions to further promote a plastic-free culture in society.

    A spokesman for the EPD said that the new regulation has been implemented for a month and that society as a whole has generally complied. It can be seen that a green and waste-less living culture has begun to develop in the societal level, and the trades have gradually adapted to the new regulatory requirements and made corresponding changes in their businesses. During the adaptation period, the EPD proactively arranged for staff to inspect more than 47 700 catering premises, retail stores, hotels and guesthouses in Hong Kong to provide various supports to the trades. Following the adaptation period, the EPD deployed staff over the past month to carry out inspections and follow up on the improvement progress at about 160 retail outlets that were non-compliant during the adaptation period. It was found that these outlets had all complied with the regulatory requirements. As for hotels and catering premises downstream, the EPD received 43 complaints about non-compliance over the past month, all of which have been investigated. While most of them have been rectified, two of them still had not taken specific actions to rectify at the time of follow-up inspections. The EPD has issued written warnings requiring the persons-in-charge to make improvements within 10 working days; otherwise, a fixed penalty notice will be issued.

    The spokesman said, "After the adaptation period, the trades have actively complied with the new regulation by stopping the sale or provision of regulated disposable plastic products. The public's habit of using relevant products in their daily lives has also changed; for example, the number of takeaway customers who do not require disposable tableware has increased significantly compared to before the implementation of the new regulation, and they have gradually become accustomed to bringing their own reusable tableware. Also, more than 80 per cent of takeaway customers in chain restaurants no longer require disposable tableware. It is estimated that, on average, the new regulation can reduce more than 60 million sets of disposable tableware in Hong Kong every year, achieving an overall effective waste reduction goal. We are very grateful to the public and trades for their strong support and active participation. In addition, daily life for citizens and the trades has changed accordingly, with 'bring your own reusable tableware' and plastic-free cultures gradually spreading throughout society. This proves that the new regulation has achieved certain results.

    "Hong Kong people have made unprecedented changes over the past six months to go plastic-free. However, legislation is merely one tool; our ultimate goal is to foster societal recognition and establish a plastic-free culture. Changing social customs and encouraging individuals to adopt new habits is no easy task. Solely relying on government initiatives will not suffice; we require collective support from society to succeed. The EPD appeals to all individuals, groups and organisations that support this goal to participate collaboratively and encourage others to change their lifestyles by starting with a move towards plastic-free. Together, we can promote a green and low-carbon living culture in Hong Kong and establish our ecological civilisation."

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