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Published in mSphere - 06 Nov 2019

Temmam S, Bigot T, Chrétien D, Gondard M, Pérot P, Pommelet V, Dufour E, Petres S, Devillers E, Hoem T, Pinarello V, Hul V, Vongphayloth K, Hertz JC, Loiseau I, Dumarest M, Duong V, Vayssier-Taussat M, Grandadam M, Albina E, Dussart P, Moutailler S, Cappelle J, Brey PT, Eloit M

Link to Pubmed [PMID] – 31694898

mSphere 2019 Nov;4(6)

Jingmenvirus is a recently identified group of segmented RNA viruses phylogenetically linked with unsegmented viruses. Primarily identified in various tick genera originating in China, Jingmenvirus geographical distribution has rapidly expanded to cover Africa, South America, Caribbean, and Europe. The identification of Jingmen-related viruses in various mammals, including febrile humans, opens the possibility that Jingmenviruses may be novel tick-borne arboviruses. In this study, we aimed at increasing knowledge of the host range, genetic diversity, and geographical distribution of Jingmenviruses by reporting for the first time the identification of Jingmenviruses associated with ticks originating in the French Antilles (Guadeloupe and Martinique islands), with ticks in Lao PDR, and with ticks in metropolitan France, and from urine of bats in Cambodia. Analyses of the relationships between the different Jingmenvirus genomes resulted in the identification of three main phylogenic subclades, each of them containing both tick-borne and mammal-borne strains, reinforcing the idea that Jingmenviruses may be considered as tick-borne arboviruses. Finally, we estimated the prevalence of Jingmenvirus-like infection using luciferase immunoprecipitation assay screening (LIPS) of asymptomatic humans and cattle highly exposed to tick bites. Among 70 French human, 153 Laotian human, and 200 Caribbean cattle sera tested, only one French human serum was found (slightly) positive, suggesting that the prevalence of Jingmenvirus human and cattle infections in these areas is probably low. Several arboviruses emerging as new pathogens for humans and domestic animals have recently raised public health concern and increased interest in the study of their host range and in detection of spillover events. Recently, a new group of segmented -related viruses, the Jingmenviruses, has been identified worldwide in many invertebrate and vertebrate hosts, pointing out the issue of whether they belong to the arbovirus group. The study presented here combined whole-genome sequencing of three tick-borne Jingmenviruses and one bat-borne Jingmenvirus with comprehensive phylogenetic analyses and high-throughput serological screening of human and cattle populations exposed to these viruses to contribute to the knowledge of Jingmenvirus host range, geographical distribution, and mammalian exposure.

https://www.ncbi.nlm.nih.gov/pubmed/31694898