The incidence of mosquito-borne diseases dengue fever (DF) and chikungunya fever (CF) has remained low despite the hot summer temperature and occasional rains that foster mosquito breeding, the Centre for Health Protection (CHP) has reported.
But CHP reminded members of the public to remain vigilant by taking appropriate
measures to prevent mosquito bites and mosquito breeding, both in Hong Kong and
when travelling to areas affected by mosquito-borne diseases.
“Mosquito-borne diseases such as DF and CF are endemic in
various countries worldwide. The risk of importation persists,” it added.
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| PINDUTIN ITO PARA SA DETALYE |
During the week from August 7 to August 13, the CHP recorded
one imported DF case. The patient had travelled to Malaysia during the
incubation period.
Hong Kong has recorded 28 DF cases so far this year, comprising 26 imported cases and two local cases. A total of 59 DF cases were recorded last year (2025), all of which were imported cases. In 2024, 161 DF cases were recorded, comprising 156 imported cases and five local cases, the CHP reported.
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 2024, the WHO recorded over 14 million
DF cases, which was a record number.
In 2025, over five million cases and over 4,000 DF-related
deaths were reported in over 90 countries/territories. From January to June
2026, around 1.6 million cases and over 700 DF-related deaths have been
reported in 89 countries/territories.
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| Basahin ang detalye! |
In the case of chikungunya
fever, no new cases had been recorded from August 7 to 13.
CHP said Hong Kong has recorded two confirmed CF cases so
far this year, both of which were imported cases. Hong Kong recorded a total of
82 confirmed CF cases last year. Among them, 11 were local cases and the rest
were imported cases.
According to the WHO, a total of 502 264 CF cases and 186
CF-related deaths were reported in 41 countries/territories last year. Cases
were reported in the Americas, Africa, Asia and Europe. According to the
Guangdong Provincial Disease Control and Prevention Administration, in 2026, as
of June 30, Guangdong Province has recorded 76 local cases.
Some of the preventive measures to be taken by the public
include:
- Maintain good environmental hygiene to prevent mosquito bites and mosquito breeding
- Check the situation at their destinations before travelling abroad, especially when travelling to Southeast Asian countries. Additionally, whether travelling or not, they should use DEET-containing insect repellents or other effective active ingredients properly to prevent mosquito bites/
- Inspect their homes and surroundings to remove potential breeding grounds, changing water in vases and scrubbing their inner surfaces, removing water in saucers under potted plants at least once a week, and properly disposing of containers such as empty cans and lunch boxes. Also, keep drains free of blockage and level all defective ground surfaces to prevent the accumulation of water.
- Call 1823 in case of mosquito problems, and visit the following pages for more information: the CF page of the CHP and the Travel Health Service, the latest Travel Health News, tips for using insect repellents, and the CHP Facebook Page, Instagram Account and YouTube Channel, and also the Mosquito Prevention and Control dedicated page of the FEHD.
