title: Seroepidemiology of nine zoonoses in Viljujsk, Republic of Sakha (Northeastern Siberia, Russian Federation).
abstract: A seroepidemiology survey of nine zoonoses was carried out in 2007 on 90 healthy adult volunteers in Viljujsk, a northern city in the Republic of Sakha (Eastern Siberia). The seroprevalence of Lyme borreliosis was 3.3% by immunofluorescence. None of the subjects displayed a positive enzyme-linked immunosorbent assay/Western blot result for alveolar or cystic echinococcosis. The seroprevalence of toxocariasis by Western blot was 4.4%, and 8.9% of the subjects had anti-Toxoplasma IgG. By enzyme-linked immunosorbent assay, the seroprevalence of trichinellosis was 4.4%. Three subjects were simultaneously positive for tick-borne encephalitis and West Nile infection, so no clear diagnostic conclusion could be reached for these flavivirus diseases. Interestingly, Crimea-Congo hemorrhagic fever had an 11.1% seroprevalence rate, indicating that Viljujsk is the most northern focus of this infection. Additionally, this finding suggests a potential involvement of Crimea-Congo hemorrhagic fever agent, or of another member of the Bunyaviridae family, in the genesis of the so-called Viljujsk encephalomyelitis.
authors.affiliation: Department of Parasitology, Toulouse University Hospitals, Toulouse, France. magnaval@cict.fr
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Magnaval
authors.forename: Hugues
authors.initials: H
authors.lastname: Tolou
authors.forename: Morgane
authors.initials: M
authors.lastname: Gibert
authors.forename: Vladimir
authors.initials: V
authors.lastname: Innokentiev
authors.forename: Mylène
authors.initials: M
authors.lastname: Laborde
authors.forename: Olga
authors.initials: O
authors.lastname: Melnichuk
authors.forename: Marc
authors.initials: M
authors.lastname: Grandadam
authors.forename: Eric
authors.initials: E
authors.lastname: Crubézy
authors.forename: Anatoly
authors.initials: A
authors.lastname: Alekseev
mesh_terms: D000818:Animals; D000909:Antibodies, Helminth / Q000097:blood; D000913:Antibodies, Protozoan / Q000097:blood; D000914:Antibodies, Viral / Q000097:blood; D005260:Female; D006373:Helminthiasis / Q000453:epidemiology; D006801:Humans; D008193:Lyme Disease / Q000453:epidemiology; D008297:Male; D015995:Prevalence; D012327:RNA Virus Infections / Q000453:epidemiology; D016036:Seroepidemiologic Studies; D012800:Siberia / Q000453:epidemiology; D014123:Toxoplasmosis / Q000453:epidemiology; D015047:Zoonoses / Q000453:epidemiology*
chemical_list: D000909:Antibodies, Helminth; D000913:Antibodies, Protozoan; D000914:Antibodies, Viral