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(updated on 2014/07/29)

Re-emergence of Ebola virus 伊波拉病毒的再現

©2014 SpatioEpi.com
Map created by CUHK SpatioEpi Group

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Since March 2014, there has been an ongoing Ebola Haemorrhagic Fever (caused by Ebola virus) outbreak in Guinea in West Africa. By the end of July, more than 400 cases have been reported, including at least 300 deaths, in the country. The neighbouring countries, Liberia and Sierra Leone, have recorded a total of 600 cases (confirmed and suspected).

The map shows the distribution of Ebola outbreaks in the recent 3 decades and the home range of fruit bats (possible natural host of Ebola virus). Background colour of countries represents the Ebola subtype, with pie charts showing the proportion of deceased cases whereas their sizes indicate the total number of reported cases in the respective time period. Among subtypes, Ebola-Zaire has the highest geographic coverage, number of people infected and the longest time range. At the recent outbreak in Guinea, Ebola-Zaire subtype infection is reported for the first time in West Africa. Ebola virus can be transmitted through direct contacts with blood, secretions, other bodily fluid and organs of infected animals or human. Infection control in health-care settings and personal preventive measures are essential for controlling the spread of this deadly infection.

Data for the map were extracted from WHO and CDC.

今年三月,西非國家畿內亞爆發伊波拉出血熱 (由伊波拉病毒引起的疾病),並持續至現在尚未完結。截止七月底,已經有超過400宗確診及懷疑個案,當中超過300人死亡。至於鄰近國家,利比利亞及塞拉利昂共有超過600宗確診及懷疑個案。

地圖顯示近三十年伊波拉出血熱的爆發地區及果蝠(相信是原宿主)棲息地的分佈,地區顏色代表伊波拉亞型病毒種類,餅圖代表死亡人數比例,大小則表示報告人數。過去三十年,薩伊株是感染最多國家,最多人及持續最久的伊波拉亞型病毒。這次也是薩伊株亞型病毒第一次肆虐西非。伊波拉病毒可以通過接觸已受感染的動物及人的血液、體液和器官傳播。為預防此極高死亡率的疾病傳播,醫療機構感染控制及個人預防措施至關重要。

地圖資料源自世界衛生組織及美國疾病控制與預防中心。