UK mosquitoes are competent to transmit Usutu virus at native temperatures.

Autor:	Pilgrim J; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK., Metelmann S; North West Field Service, UK Health Security Agency, Liverpool L3 1EL, UK., Widlake E; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK., Seechurn N; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK., Vaux A; Medical Entomology and Zoonoses Ecology group, UK Health Security Agency, Porton Down, Salisbury SP4 0JG, UK., Mansfield KL; Animal and Plant Health Agency, Woodham Lane, Addlestone, Surrey KT15 3NB, UK., Tanianis-Hughes J; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK., Sherlock K; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK., Johnson N; Animal and Plant Health Agency, Woodham Lane, Addlestone, Surrey KT15 3NB, UK., Medlock J; Medical Entomology and Zoonoses Ecology group, UK Health Security Agency, Porton Down, Salisbury SP4 0JG, UK., Baylis M; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK., Blagrove MSC; Institute of Infection, Veterinary and Ecological Sciences, Faculty of Health and Life Sciences, University of Liverpool, Liverpool L69 3BX, UK.
Jazyk:	angličtina
Zdroj:	One health (Amsterdam, Netherlands) [One Health] 2024 Oct 13; Vol. 19, pp. 100916. Date of Electronic Publication: 2024 Oct 13 (Print Publication: 2024).
DOI:	10.1016/j.onehlt.2024.100916
Abstrakt:	Usutu virus (USUV) is an emerging zoonotic virus transmitted primarily by Culex mosquitoes. Since its introduction into Europe from Africa during the late 20th century, it has caused mortality within populations of passerine birds and captive owls, and can on occasion lead to disease in humans. USUV was first detected in the UK in 2020 and has become endemic, having been detected in either birds and/or mosquitoes every subsequent year. Importantly, the vector competence of indigenous mosquitoes for the circulating UK (London) USUV strain at representative regional temperatures is still to be elucidated. This study assessed the vector competence of five field-collected mosquito species/biotypes, Culex pipiens biotype molestus , Culex pipiens biotype pipiens , Culex torrentium , Culiseta annulata and Aedes detritus for the London USUV strain, with infection rates (IR) and transmission rates (TR) evaluated between 7 and 28 days post-infection. Infection and transmission were observed in all species/biotypes aside from Ae. detritus and Cx. torrentium . For Cx. pipiens biotype molestus , transmission potential suggests these populations should be monitored further for their role in transmission to humans. Furthermore, both Cx. pipiens biotype pipiens and Cs. annulata were shown to be competent vectors at 19 °C indicating the potential for geographical spread of the virus to other UK regions. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2024 The Authors. Published by Elsevier B.V.)
Databáze:	MEDLINE
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