乌拉圭手足口病:柯萨奇病毒 A6 被确定为农村托儿所暴发疫情的病原体。

Hand-foot-and-mouth disease in uruguay: Coxsackievirus A6 identified as causative of an outbreak in a rural childcare center.

机构信息

Laboratorio de Virología Molecular, Departamento de Ciencias Biológicas, Universidad de la República, Salto, Salto, Uruguay.

Laboratório de Enterovírus, Fundação Oswaldo Cruz, Rio de Janeiro, Brasil.

出版信息

J Med Virol. 2020 Feb;92(2):167-173. doi: 10.1002/jmv.25590. Epub 2019 Sep 20.

Abstract

To know the epidemiological context of hand-foot-and-mouth disease (HFMD) in a region of Uruguay and to identify the Enterovirus responsible for an outbreak in a rural childcare center in 2018. Swab samples from skin lesions and/or stools samples were collected from children suffering HFMD during an outbreak in a rural childcare center. Samples were subject to viral RNA extraction and reverse-transcription polymerase chain reaction towards VP1 coding segment, to identify the Enterovirus type by sequencing and phylogenetic analysis. Total of 149 cases of HFMD affecting 98 boys and 51 girls were reported in Salto Province-Uruguay in 2018. Total 60% of the cases were originated from outbreaks, which occurred in ten educative and childcare institutions from both urban and rural areas. Coxsackievirus-6 (CV-A6) was identified as responsible for one of the rural outbreaks. Uruguayan strains were more related to strains reported in Russia, Turkey, and Germany (2014-2017) than to strains reported in Brazil and Argentina from 2015 to 2016. This is the first report of CV-A6-associated HFMD in Uruguay, evidencing a wide geographic range of the virus in the Latin American region. Our report also warns about CV-A6-associated HFMD during winter, contrarily to most reports that register HFMD during summer and fall seasons.

摘要

了解乌拉圭某地区手足口病(HFMD)的流行病学情况,并确定 2018 年农村托儿所爆发疫情的肠道病毒。从农村托儿所爆发疫情期间患有手足口病的儿童的皮肤损伤和/或粪便样本中采集拭子样本。对样本进行病毒 RNA 提取和逆转录聚合酶链反应,针对 VP1 编码片段进行测序和系统发育分析,以确定肠道病毒的类型。2018 年,乌拉圭萨尔托省报告了 149 例手足口病病例,涉及 98 名男童和 51 名女童。总共有 60%的病例来自暴发疫情,这些暴发疫情发生在城乡地区的 10 所教育和儿童保育机构。柯萨奇病毒 A6(CV-A6)被确定为农村暴发疫情之一的病原体。乌拉圭株与 2014 年至 2017 年在俄罗斯、土耳其和德国报告的株系更为相关,而与 2015 年至 2016 年在巴西和阿根廷报告的株系关系较远。这是乌拉圭首次报告 CV-A6 相关手足口病,表明该病毒在拉丁美洲地区具有广泛的地理分布。我们的报告还警告说,CV-A6 相关手足口病可能发生在冬季,这与大多数报告夏季和秋季发生手足口病的报告相反。

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