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非洲蝙蝠、家畜和人类种群之间的亨德拉尼帕病毒。

Henipaviruses at the Interface Between Bats, Livestock and Human Population in Africa.

机构信息

1 Department of Microbiology, Faculty of Science, University of Yaoundé 1 (UY1), Yaoundé, Cameroon.

2 Laboratory for Public Health Research Biotechnologies (LAPHER Biotech.), Biotechnology Centre-University of Yaoundé 1 (BTC-UY1), Yaoundé, Cameroon.

出版信息

Vector Borne Zoonotic Dis. 2019 Jul;19(7):455-465. doi: 10.1089/vbz.2018.2365. Epub 2019 Apr 13.

Abstract

Nipah virus (NiV) and Hendra virus (HeV) are closely related members within the genus , family , for which fruit bats serve as the reservoir. The initial emergence of NiV infections in pigs and humans in Malaysia, and HeV infections in horses and humans in Australia, posed severe impacts on human and animal health, and continues threatening lives of humans and livestock within Southeast Asia and Australia. Recently, henipavirus-specific antibodies have also been detected in fruit bats in a number of sub-Saharan African countries and in Brazil, thereby considerably increasing the known geographic distribution of henipaviruses. Africa is progressively being recognized as a new high prevalence zone for henipaviruses, as deduced from serological and molecular evidence of past infections in Madagascar, Ghana, Republic of Congo, Gulf of Guinea, Zambia, Tanzania, Cameroon, and Nigeria lately. Serological data suggest henipavirus spillover from bats to livestock and human populations in Africa without reported clinical disease in any of these species. All virus isolation attempts have been abortive, highlighting the need for further investigations. The genome of the Ghanaian bat henipavirus designated Ghana virus (GhV), which was detected in a pteropid bat, is the only African henipavirus that has been completely sequenced limiting our current knowledge on the genetic diversity and pathogenesis of African henipaviruses. In this review, we summarize the available data on the circulation of henipaviruses in Africa, discuss potential sources for virus spillover, and highlight existing research gaps.

摘要

尼帕病毒(NiV)和亨德拉病毒(HeV)是隶属于,科,属的密切相关成员,果蝠是其天然宿主。马来西亚首次出现尼帕病毒感染猪和人类,以及澳大利亚首次出现亨德拉病毒感染马和人类,对人类和动物健康造成了严重影响,并继续威胁着东南亚和澳大利亚的人类和牲畜的生命。最近,在撒哈拉以南非洲的一些国家和巴西的果蝠中也检测到了亨巴病毒特异性抗体,从而大大增加了亨巴病毒的已知地理分布。随着过去在马达加斯加、加纳、刚果共和国、几内亚湾、赞比亚、坦桑尼亚、喀麦隆和尼日利亚的血清学和分子证据表明,非洲正逐渐被认为是亨巴病毒的新高发区。血清学数据表明,亨巴病毒从蝙蝠溢出到非洲的牲畜和人群中,但这些物种均没有报告临床疾病。所有病毒分离尝试均以失败告终,这突出表明需要进一步调查。在一种翼手目蝙蝠中检测到的加纳蝙蝠亨巴病毒(GhV)是唯一一种在非洲完全测序的亨巴病毒,这限制了我们目前对非洲亨巴病毒的遗传多样性和发病机制的了解。在这篇综述中,我们总结了非洲亨巴病毒循环的现有数据,讨论了病毒溢出的潜在来源,并强调了现有研究空白。

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