墨西哥恰帕斯州水泡性口炎病毒流行区内的传播动态。

IF 3.8 3区 医学 Q2 VIROLOGY
Viruses-Basel Pub Date : 2024-11-06 DOI:10.3390/v16111742
Lawrence H Zhou, Federico Valdez, Irene Lopez Gonzalez, Willian Freysser Urbina, Ariadna Ocaña, Cristell Tapia, Armando Zambrano, Edilberto Hernandez Solis, Debra P C Peters, Chad E Mire, Roberto Navarro, Luis L Rodriguez, Kathryn A Hanley
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引用次数: 0

摘要

水泡性口炎病毒(VSV)由新泽西州水泡性口炎病毒(VSNJV)和印第安纳州水泡性口炎病毒(VSIV)组成,它从墨西哥南部的地方性传播中心出现,在美国西部引起零星的家畜流行病。由于缺乏有关潜在节肢动物载体在该流行地区所起作用的信息,因此无法确定导致该病流行和预测疫情爆发的因素。在墨西哥恰帕斯州五个养牛场进行的一项为期两年的纵向研究中,收集了被认为是 VSV 传播媒介的昆虫类群(黑蝇、沙蝇、咬蠓和蚊子)并对其进行了 VSV RNA 筛查,监测了牲畜水泡性口炎(VS)病例,并对血清样本进行了中和抗体筛查。在雨季(20 例)和雨季后(2 例)报告了 VS 病例。与 VSIV(0.6%,所有牧场)相比,成年牛的 VSNJV 血清流行率非常高(每个牧场 75%-100%)。对所有四个潜在的病媒类群都进行了采样,每个类群都检测到了 VSNJV RNA(在 874 个蚊子池中,VSNJV 阳性的占 11%),而 VSIV RNA 只在四个蚊子池中检测到。我们的研究结果表明,VSNJV 是我们采样地点的主要血清型,全年有多种潜在昆虫媒介参与传播。虽然恰帕斯州在旱季没有发现牲畜感染病例,但在此期间却在昆虫体内检测到了 VSNJV,这表明除了牲畜传播外,VSV 的流行还有其他机制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Vesicular Stomatitis Virus Transmission Dynamics Within Its Endemic Range in Chiapas, Mexico.

Vesicular stomatitis virus (VSV), comprising vesicular stomatitis New Jersey virus (VSNJV) and vesicular stomatitis Indiana virus (VSIV), emerges from its focus of endemic transmission in Southern Mexico to cause sporadic livestock epizootics in the Western United States. A dearth of information on the role of potential arthropod vectors in the endemic region hampers efforts to identify factors that enable endemicity and predict outbreaks. In a two-year, longitudinal study at five cattle ranches in Chiapas, Mexico, insect taxa implicated as VSV vectors (blackflies, sandflies, biting midges, and mosquitoes) were collected and screened for VSV RNA, livestock vesicular stomatitis (VS) cases were monitored, and serum samples were screened for neutralizing antibodies. VS cases were reported during the rainy (n = 20) and post-rainy (n = 2) seasons. Seroprevalence against VSNJV in adult cattle was very high (75-100% per ranch) compared with VSIV (0.6%, all ranches). All four potential vector taxa were sampled, and VSNJV RNA was detected in each of them (11% VSNJV-positive of 874 total pools), while VSIV RNA was only detected in four pools of mosquitoes. Our findings indicate that VSNJV is the dominant serotype across our sampling sites with a variety of potential insect vectors involved in its transmission throughout the year. Although no livestock cases were reported in Chiapas during the dry season, VSNJV was detected in insects during this period, suggesting that mechanisms other than transmission from livestock support VSV endemicity.

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来源期刊
Viruses-Basel
Viruses-Basel VIROLOGY-
CiteScore
7.30
自引率
12.80%
发文量
2445
审稿时长
1 months
期刊介绍: Viruses (ISSN 1999-4915) is an open access journal which provides an advanced forum for studies of viruses. It publishes reviews, regular research papers, communications, conference reports and short notes. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. There is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. We also encourage the publication of timely reviews and commentaries on topics of interest to the virology community and feature highlights from the virology literature in the ''News and Views'' section. Electronic files or software regarding the full details of the calculation and experimental procedure, if unable to be published in a normal way, can be deposited as supplementary material.
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