Eared dove (Zenaida auriculata, Columbidae) as host for St. Louis encephalitis virus (Flaviviridae, Flavivirus)

Vector Borne and Zoonotic Diseases
Luis Adrián DiazMarta Contigiani

Abstract

St. Louis encephalitis virus (SLEV) is an emerging Flavivirus in South American countries. Its ecology and biological transmission cycles are scarcely known. Eared doves (Zenaida auriculata) have frequently been found infected by SLEV, and therefore, could be suspected as SLEV hosts. Thirty post-hatch-year eared doves were subcutaneously inoculated with the genotype V SLEV 78V-6507 viral strain and subsequently bled. No deaths or clinical signs of illness were observed in the inoculated doves. The viremia titers ranged from 2 to 5.5 log(10) plaque-forming units (PFU)/mL during 1-7 days postinoculation (dpi), the highest being observed on the 4th dpi. Mosquitoes were collected using can traps baited with chicken and eared doves for comparison. A total of 2792 mosquitoes belonging to 5 species were collected. Ninety percent of the mosquitoes collected in eared dove-baited can traps were Culex quinquefasciatus. Statistical differences were not observed in either Cx. quinquefasciatus (Chi(2) = 0.86; df = 1; p = 0.354) or in Cx. interfor (Chi(2) = 0.63; df = 1; p = 0.426) mosquitoes collected in both chicken- and eared dove-baited can traps. Considering that eared doves were frequently found naturally infected by SLEV, that they dev...Continue Reading

References

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Feb 8, 2007·Emerging Infectious Diseases·Luis Adrián DiazMarta Contigiani

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Citations

Jun 2, 2011·PLoS Neglected Tropical Diseases·Luis Adrián DiazMarta S Contigiani
Feb 4, 2012·PLoS Neglected Tropical Diseases·Luis Adrian DíazMarta Silvia Contigiani
Dec 3, 2015·Revista Argentina de microbiología·Fernando J BeltránLorena I Spinsanti
Jan 23, 2008·Enfermedades infecciosas y microbiología clínica·Viviana RéMarta Contigiani
May 9, 2014·Memórias do Instituto Oswaldo Cruz·María Elisa RivarolaMarta Silvia Contigiani
Apr 12, 2017·Journal of Medical Entomology·Carlos Brisola MarcondesRaquel Miranda Gleiser
May 16, 2018·The American Journal of Tropical Medicine and Hygiene·Adrián DíazMarta S Contigiani

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