Mosquitoes from Europe Are Able to Transmit Snowshoe Hare Virus.

Publisher: MDPI Country of Publication: Switzerland NLM ID: 101509722 Publication Model: Electronic Cited Medium: Internet ISSN: 1999-4915 (Electronic) Linking ISSN: 19994915 NLM ISO Abbreviation: Viruses Subsets: MEDLINE

Original Publication: Basel, Switzerland : MDPI

Culex* ; Aedes* ; Encephalitis Virus, California*; Animals ; Humans ; Mosquito Vectors ; Europe ; Mammals

Snowshoe hare virus (SSHV) is a zoonotic arthropod-borne virus (arbovirus) circulating in colder areas of the Northern Hemisphere. SSHV is maintained in an enzootic cycle between small mammals and mosquitoes, assumably of the genera Aedes and Culiseta . Symptoms of SSHV human infection can range from asymptomatic to severe neuroinvasive disease. Studies on SSHV transmission are limited, and there is no information available on whether mosquitoes of the genus Culex are able to transmit SSHV. Therefore, we investigated six mosquito species via salivation assay for their vector competence. We demonstrated that SSHV can be transmitted by the abundant European Culex species Cx. pipiens biotype pipiens, Cx. pipiens biotype molestus, and Cx. torrentium with low transmission efficiency between 3.33% and 6.67%. Additionally, the invasive species Ae. albopictus can also transmit SSHV with a low transmission efficiency of 3.33%. Our results suggest that local transmission of SSHV after introduction to Europe seems to be possible from a vector perspective.

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FKZ 2819107A22 Federal Ministry of Food and Agriculture; 01Kl2022 Federal Ministry of Education and Research

Keywords: Aedes; Culex; snowshoe hare virus; vector competence

Snowshoe hare virus

Date Created: 20240224 Date Completed: 20240226 Latest Revision: 20240522

20240522

PMC10893336

10.3390/v16020222

38399996