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Temporal Variation in Sindbis Virus Antibody Prevalence in Bird Hosts in an Endemic Area in Sweden

Östman, Örjan and Hesson, Jenny C. and Lundström, Jan O. and Tok, Atalay and Lundkvist, Åke (2016). Temporal Variation in Sindbis Virus Antibody Prevalence in Bird Hosts in an Endemic Area in Sweden. PloS one. 11:8, 1-12
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Official URL: http://dx.doi.org/10.1371/journal.pone.0162005

Abstract

Sindbis virus (SINV) is a mosquito-borne bird virus that occasionally causes human disease in Fennoscandia, suggested to have cyclic 7-year intervals between outbreaks. Reliable data on human infections in Sweden is however lacking. Here we investigated the SINV antibody prevalence among birds in a Swedish area endemic to SINV to scrutinize if a cyclic variation in antibody prevalence is present in the natural host of SINV. Serum from birds were sampled in the summers of 2002-2004 and 2009 in the floodplains of the River Dalalven in central Sweden, with 2002 and 2009 representing hypothesized years of SINV outbreaks. A total of 963 birds from 52 species (mainly passerines) were tested for the presence of SINV antibodies using a plaque reduction neutralization test. The highest SINV antibody prevalence was found in Turdidae species, specifically Fieldfare, Redwing and Song thrush in which more than 70% of sampled individuals had antibodies to SINV in 2009. The SINV antibody prevalence significantly varied between years with 2% in 2002, 8% in 2003, 14% in 2004 and 37% in 2009. Antibodies were found equally often in hatchlings and in adults and increased from early to late in the season. Clearly, the SINV antibody prevalence was not elevated in the bird hosts in the predicted outbreak year 2002, thus solid evidence of a cyclic occurrence of SINV in Sweden is still lacking.

Authors/Creators:Östman, Örjan and Hesson, Jenny C. and Lundström, Jan O. and Tok, Atalay and Lundkvist, Åke
Title:Temporal Variation in Sindbis Virus Antibody Prevalence in Bird Hosts in an Endemic Area in Sweden
Series/Journal:PloS one (1932-6203)
Year of publishing :2016
Volume:11
Number:8
Page range:1-12
Number of Pages:12
Publisher:Public Library of Science
ISSN:1932-6203
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Published version
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 3 Medical and Health Sciences > 302 Clinical Medicine > Infectious Medicine
Agrovoc terms:viroses, bird diseases, zoonoses
Keywords:Sindbis virus (SINV), mosquito-borne bird viruses, Ockelbo disease, Pogosta disease, temporal variations, cyclic outbreaks
URN:NBN:urn:nbn:se:slu:epsilon-e-4122
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-4122
Additional ID:
Type of IDID
Web of Science (WoS)000382877400051
DOI10.1371/journal.pone.0162005
ID Code:14252
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Department of Aquatic Resources
Deposited By: SLUpub Connector
Deposited On:21 Apr 2017 08:35
Metadata Last Modified:21 Apr 2017 08:35

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