Opinion Poll 意見調查 Email Alert 電郵快訊


Story maps

Local born dengue then and now 土生土長登革熱

(added on 2017/08/29)

©2017 SpatioEpi.com
Map created by CUHK SpatioEpi Group


The map shows the distribution of reported local dengue cases from January 2001 to August 2017 in Hong Kong. In the past 16 years, only 35 dengue cases were locally acquired, accounting for 3% of total reported cases (n=1027). Limited local outbreaks (2 or more cases) have occurred: 15 cases lived near or worked in the Ma Wan construction site in 2002, 4 cases lived in Deep Water Bay in 2010, 2 cases worked in the Sai Ying Pun construction site in 2014, and 3 cases visited the Hong Kong Zoological and Botanical Gardens or lived in the Mid-levels in 2016. Over the years, the local outbreaks had not occurred in the same area. Overall, most of the suspected infection locations were in urban areas (grey building blocks on the map). The pattern of reported cases was different from those of Japanese encephalitis, which were found near pig farms (map: headaches near pig farms).

Data for the map were extracted from media reports.

地圖顯示香港 2001年1月至2017年8月本地登革熱個案的分佈。在過去16年期間,本地登革熱個案只有35宗,佔總報告個案(1027宗)的百份之三。有限度的爆發(2宗或以上)曾發生於: 2002年馬灣地盤及附近居住地(共15宗)、2010年深水灣居住地(共4宗)、2014年西營盤地盤(共2宗)及2016年香港動植物公園及附近半山區(共3宗)。雖然這些登革熱爆發並沒有在同一個地方發生,但都是在市區。這與日本腦炎個案分佈於豬場附近情況不同 (地圖:豬場周邊的煩惱)。


Related Article

Dengue 登革熱

What is Dengue? 什麼是登革熱?

  • Dengue is an acute infection caused by the dengue virus Flavivirus. Clinically it can manifest as dengue fever or dengue haemorrhagic fever (DF/DHF).
  • 登革熱病是由登革熱病毒引致的急性傳染病,患者的臨床情況可分為登革熱及登革出血熱。
  • Oviposition trap (Ovitrap) index is a marker for assessing mosquito growth using a simple device placed in the outdoor environment. This in turn supports the evaluation of dengue risk in the human population.
  • 誘蚊指數是以簡單儀器放置戶外,藉以評估伊蚊生長的況,所得指標,用以反映人群感染登革熱的危機。

How does it spread? 如何傳播?

  • Dengue is spread through the bite of several species of the Aedes mosquito which carries the dengue virus. In Hong Kong and Macao, the responsible vector is Aedes Albopictus. Aedes aegypti is the most important vector worldwide. Both types of mosquitoes are found in Taiwan.
  • 登革熱是經被帶有病毒的伊蚊叮後而傳播的傳染病。在香港,白紋伊蚊是常見的傳播媒介,而全球最重要的則是埃及伊蚊。台灣是兩種伊蚊並存。

Vaccine? Prevention? 如何預防?

  • Currently there is no promising vaccine to protect from dengue virus. The best measure is to minimise the breeding grounds of the Aedes mosquitoes by for example sealing up puddles of stagnant water, and avoiding mosquito bites.
  • 目前仍未有有效防登革熱病毒感染的疫苗。預防措施的重點首是減少伊蚊繁殖的地方,包括清除積水防止蚊子滋生,以及避免被蚊子叮咬。

Related maps 相關地圖

Other resources 其他資訊

Organisations 有關機構

Further information 詳細資料