Jamestown Canyon virus comes into view: understanding the threat from an underrecognized arbovirus

虫媒病毒 生物 病毒学 重新分配 载体(分子生物学) 经卵巢传播 传输(电信) 伊蚊 静脉病毒 布尼亚病毒属 病毒 布尼亚病毒科 生态学 疾病 遗传学 登革热 传染病(医学专业) 医学 工程类 2019年冠状病毒病(COVID-19) 病理 基因 电气工程 重组DNA
作者
John J. Shepard,Philip M. Armstrong
出处
期刊:Journal of Medical Entomology [Oxford University Press]
卷期号:60 (6): 1242-1251
标识
DOI:10.1093/jme/tjad069
摘要

Abstract This review examines the epidemiology, ecology, and evolution of Jamestown Canyon virus (JCV) and highlights new findings from the literature to better understand the virus, the vectors driving its transmission, and its emergence as an agent of arboviral disease. We also reanalyze data from the Connecticut Arbovirus Surveillance Program which represents the largest dataset on JCV infection in mosquitoes. JCV is a member of the California serogroup of the genus Orthobunyavirus, family Peribunyaviridae, and is found throughout much of temperate North America. This segmented, negative-sense RNA virus evolves predominately by genetic drift punctuated by infrequent episodes of genetic reassortment among novel strains. It frequently infects humans within affected communities and occasionally causes febrile illness and neuroinvasive disease in people. Reported human cases are relatively rare but are on the rise during the last 20 yr, particularly within the northcentral and northeastern United States. JCV appears to overwinter and reemerge each season by transovarial or vertical transmission involving univoltine Aedes (Diptera: Culicidae) species, specifically members of the Aedes communis (de Geer) and Ae. stimulans (Walker) Groups. The virus is further amplified in a mosquito-deer transmission cycle involving a diversity of mammalophilic mosquito species. Despite progress in our understanding of this virus, many aspects of the vector biology, virology, and human disease remain poorly understood. Remaining questions and future directions of research are discussed.
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