世界保健機関（WHO）は、コンゴ民主共和国とウガンダで発生したエボラウイルス「ブンディブギョ種」の感染拡大を受け、公衆衛生上の緊急事態を宣言した。これを受け、研究者からは知名度の低いエボラ株に対するワクチンの開発加速を求める声が上がっている。
WHOは、4月24日に医療従事者が発熱、出血、嘔吐、倦怠感などの症状を発症したことを受け、5月5日に感染の報告を受けた。その後、ウガンダでも感染が確認されている。米国疾病予防管理センター（CDC）によると、5月17日時点で疑い例は336件、死者は88人に上る。ブンディブギョ種の致死率は20％から50％である。
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Brazil recorded seven cases of hantavirus infection in 2026 through April, with one death. The disease, endemic in rural areas, maintains a fatality rate of around 40%.
The World Health Organisation has declared the Ebola outbreak in the Democratic Republic of Congo and Uganda a public health emergency of international concern. Kenya has responded by activating its emergency preparedness measures. The Bundibugyo strain has caused 80 deaths so far.
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The World Health Organization has declared the Ebola outbreak in the Democratic Republic of the Congo and Uganda a public health emergency of international concern. South African health officials say the risk of spread to the country remains low but stress the need for continued vigilance.
The World Health Organization stated that the hantavirus outbreak on the MV Hondius cruise ship poses no elevated global risk. Director-general Tedros Adhanom Ghebreyesus said on Wednesday there are no similarities to the start of the Covid-19 pandemic. Three people have died and eight suspected cases are under investigation on board.
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Jakarta Deputy Governor Rano Karno warned residents of a potential dengue fever (DBD) surge due to the El Nino phenomenon in the second half of 2026. He made the remarks during a simultaneous community cleanup in West Jakarta on Sunday.
Three passengers died from hantavirus on the MV Hondius cruise that departed Ushuaia for Cabo Verde. Two people with symptoms remain on board as authorities negotiate their evacuation. The WHO is coordinating measures and praises the rapid response.