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(added on 2018/01/30)

Yellow fever upsurge in Brazil 巴西黃熱再起

Map created by CUHK SpatioEpi Group

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In Brazil, after a major yellow fever outbreak ending in September 2017, there has been an upsurge in the last weeks of the year continuing through January 2018. Between 1 July 2017 and 24 January 2018, 130 confirmed human cases (including 53 deaths) and 453 non-human primates (NHP) epizootics were reported. More cases are under investigation. The map shows the distribution of reported human cases and NHP epizootics (confirmed cases and cases under investigation) in Brazil in the period. Sao Paulo state has the highest reported number of BOTH human cases and NHP epizootics, followed by Minas Gerais, and Rio de Janeiro.

From conservative estimates in a study published in Lancet (Shearer et al, 2017), 40.3 million individuals living in Brazil at-risk districts in 2016 have yet to be vaccinated against yellow fever so as to achieve 80% vaccination coverage. In early February, Carnival of Brazil will begin in famous places including Rio de Janeiro, Bahia and Pernambuco. Unvaccinated international travelers joining the carnival in Brazil might be at risk of infection. In January 2018, an imported case was reported in the Netherlands with traveling history in Brazil. Vaccination before traveling (at least 10 days in advance) to Brazil could be an effective way of prevention, as recommended by WHO. For more information, please check

繼巴西2017年黃熱病爆發於9月平息後,年底至2018年1月又有新一輪爆發。 2017年7月1 日至2018年1月24日期間,共有130例確診人類病例(包括53例死亡)和453非人類靈長類動物(NHP)爆發報告,仍有更多在調查中。地圖顯示人類病例和NHP爆發報告(確診和調查) 在巴西的分佈。聖保羅州的人類病例以及NHP爆發報告數目都是最多,其次是米納斯吉拉斯和里約熱內盧。

根據一篇在《刺針》發表的研究文獻所作保守估計(Shearer等, 2017),巴西的黃熱病高危地區於2016年仍有4030萬人需要接種疫苗,以達致80%的覆蓋率。二月初,巴西即將舉行狂歡節。熱門地點包括里約熱內盧、巴伊亞州和伯南布哥州。 從世界各地到巴西參加狂歡節但沒有接種黃熱病疫苗的旅客有一定的感染風險。 2018年1月荷蘭有一例輸入性 病例,患者曾到過巴西。根據世界衛生組織的建議,到巴西旅行前(至少10天前)接種疫苗是一種有效的預防方法。如欲了解更多資訊,請瀏覽