Assessing vector competence of mosquitoes from northeastern France to West Nile virus and Usutu virus.

Autor: Martinet JP; Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors Unit, Paris, France.; Université de Reims Champagne-Ardenne, Faculté de Pharmacie, ANSES, SFR Cap Santé, EA7510 ESCAPE-USC VECPAR, Reims, France., Bohers C; Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors Unit, Paris, France., Vazeille M; Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors Unit, Paris, France., Ferté H; Université de Reims Champagne-Ardenne, Faculté de Pharmacie, ANSES, SFR Cap Santé, EA7510 ESCAPE-USC VECPAR, Reims, France., Mousson L; Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors Unit, Paris, France., Mathieu B; Faculté de Médecine, Maïeutique et Sciences de la Santé, Institut de Parasitologie et de Pathologie Tropicale, Strasbourg, France., Depaquit J; Université de Reims Champagne-Ardenne, Faculté de Pharmacie, ANSES, SFR Cap Santé, EA7510 ESCAPE-USC VECPAR, Reims, France.; Laboratoire de Parasitologie-Mycologie, CHU de Reims, Reims, France., Failloux AB; Institut Pasteur, Université Paris Cité, Arboviruses and Insect Vectors Unit, Paris, France.
Jazyk: angličtina
Zdroj: PLoS neglected tropical diseases [PLoS Negl Trop Dis] 2023 Jun 05; Vol. 17 (6), pp. e0011144. Date of Electronic Publication: 2023 Jun 05 (Print Publication: 2023).
DOI: 10.1371/journal.pntd.0011144
Abstrakt: West Nile virus (WNV) and Usutu virus (USUV) are two arthropod-borne viruses that circulate in mainland France. Assessing vector competence has only been conducted so far with mosquitoes from southern France while an increasingly active circulation of WNV and USUV has been reported in the last years. The main vectors are mosquitoes of the Culex genus and the common mosquito Culex pipiens. Here, we measure the vector competence of five mosquito species (Aedes rusticus, Aedes albopictus, Anopheles plumbeus, Culex pipiens and Culiseta longiareolata) present in northeastern France. Field-collected populations were exposed to artificial infectious blood meal containing WNV or USUV and examined at different days post-infection. We show that (i) Cx. pipiens transmitted WNV and USUV, (ii) Ae. rusticus only WNV, and (iii) unexpectedly, Ae. albopictus transmitted both WNV and USUV. Less surprising, An. plumbeus was not competent for both viruses. Combined with data on distribution and population dynamics, these assessments of vector competence will help in developing a risk map and implementing appropriate prevention and control measures.
Competing Interests: The authors have declared that no competing interests exist.
(Copyright: © 2023 Martinet et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.)
Databáze: MEDLINE
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