在巴西乃至整个南美洲首次检测到埃及伊蚊自然感染寨卡病毒。
First detection of natural infection of Aedes aegypti with Zika virus in Brazil and throughout South America.
作者信息
Ferreira-de-Brito Anielly, Ribeiro Ieda P, Miranda Rafaella Moraes de, Fernandes Rosilainy Surubi, Campos Stéphanie Silva, Silva Keli Antunes Barbosa da, Castro Marcia Gonçalves de, Bonaldo Myrna C, Brasil Patrícia, Lourenço-de-Oliveira Ricardo
机构信息
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Mosquitos Transmissores de Hematozoários, Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz, Instituto Oswaldo Cruz, Laboratório de Biologia Molecular de Flavivírus, Rio de Janeiro, RJ, Brasil.
出版信息
Mem Inst Oswaldo Cruz. 2016 Oct;111(10):655-658. doi: 10.1590/0074-02760160332. Epub 2016 Oct 3.
Zika virus (ZIKV) has caused a major epidemic in Brazil and several other American countries. ZIKV is an arbovirus whose natural vectors during epidemics have been poorly determined. In this study, 1,683 mosquitoes collected in the vicinity of ZIKV suspected cases in Rio de Janeiro, Brazil, from June 2015 to May 2016 were screened for natural infection by using molecular methods. Three pools of Aedes aegypti were found with the ZIKV genome, one of which had only one male. This finding supports the occurrence of vertical and/or venereal transmission of ZIKV in Ae. aegypti in nature. None of the examined Ae. albopictus and Culex quinquefasciatus was positive. This is the first report of natural infection by ZIKV in mosquitoes in Brazil and other South American countries. So far, Ae. aegypti is the only confirmed vector of ZIKV during the ongoing Pan-American epidemics.
寨卡病毒（ZIKV）在巴西及其他几个美洲国家引发了一场大规模疫情。寨卡病毒是一种虫媒病毒，在疫情期间其天然传播媒介一直未得到明确确定。在本研究中，2015年6月至2016年5月期间，在巴西里约热内卢寨卡病毒疑似病例附近采集了1683只蚊子，采用分子方法对其进行自然感染筛查。发现三池埃及伊蚊带有寨卡病毒基因组，其中一池只有一只雄蚊。这一发现支持寨卡病毒在自然界埃及伊蚊中存在垂直和/或性传播。所检测的白纹伊蚊和致倦库蚊均未呈阳性。这是巴西及其他南美国家蚊子中寨卡病毒自然感染的首次报告。到目前为止，埃及伊蚊是正在进行的泛美疫情期间寨卡病毒唯一已确认的传播媒介。
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