Emergence of two Usutu virus lineages in Culex pipiens mosquitoes in the Camargue, France, 2015

Martin Eiden (1) , Patricia Gil (2) , Ute Ziegler (1) , Ignace Rakotoarivony (2) , Albane Marie (3) , Benoit Frances (3) , Grégory L'Ambert (3) , Yannick Simonin (4) , Vincent V. Foulongne (5, 4) , Martin Groschup (1) , Serafin Gutierrez (2) , Marc Eloit (6)

1 FLI - Friedrich-Loeffler-Institut
2 UMR ASTRE - Animal, Santé, Territoires, Risques et Ecosystèmes
3 EID Méditerranée - EID Méditerranée
4 Pathogénèse et contrôle des infections chroniques (PCCI)
5 Laboratoire de Virologie
6 Biologie des Infections - Biology of Infection

Usutu virus (USUV) was detected in 11 Culex pipiens mosquito pools collected in 2015 in Camargue (France) using quantitative real-time RT-PCR assays. Phylogenetic analysis of recovered virus sequences identified USUV lineages Africa 2 and Africa 3, demonstrating the simultaneous occurrence of different strains within the mosquito population. This is the first report on USUV in mosquitoes from France that concurrently accompanied the emergence of Usutu virus in blackbirds and a human case in France during 2015/2016.

Mots clés: Culex pipiens; Lineages Africa 2/3; France, arbovirus

Mots clés: Usutu virus; Mosquito

Domaines: Médecine humaine et pathologie

Martin Eiden, Patricia Gil, Ute Ziegler, Ignace Rakotoarivony, Albane Marie, et al.. Emergence of two Usutu virus lineages in Culex pipiens mosquitoes in the Camargue, France, 2015. Infection, Genetics and Evolution, 2018, 61, pp.151 - 154. ⟨10.1016/j.meegid.2018.03.020⟩. ⟨hal-01890103⟩