Vector competence of Swedish Culex pipiens mosquitoes for Usutu virus

Autor: Janina Krambrich, Emma Bole-Feysot, Patrick Höller, Åke Lundkvist, Jenny C. Hesson
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: One Health, Vol 18, Iss , Pp 100707- (2024)
Druh dokumentu: article
ISSN: 2352-7714
DOI: 10.1016/j.onehlt.2024.100707
Popis: Usutu virus (USUV) is an emerging mosquito-borne flavivirus with increasing prevalence in Europe. Understanding the role of mosquito species in USUV transmission is crucial for predicting and controlling potential outbreaks. This study aimed to assess the vector competence of Swedish Culex pipiens for USUV. The mosquitoes were orally infected with an Italian strain of USUV (Bologna 2009) and infection rates (IR), dissemination rates (DR), and transmission rates (TR) were evaluated over 7 to 28 days post-infection. The study revealed that Swedish Cx. pipiens are susceptible to USUV infection, with a gradual decrease in IR over time. However, the percentage of mosquitoes with the ability to transmit the virus remained consistent across all time points, indicating a relatively short extrinsic incubation period. Overall, this research highlights the potential of Swedish Cx. pipiens as vectors for USUV and emphasizes the importance of surveillance and monitoring to prevent future outbreaks of mosquito-borne diseases.
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