Fine-Scale Variation in Vector Host Use and Force of Infection Drive Localized Patterns of West Nile Virus Transmission

Hamer, Gabriel L.; Chaves, Luis Fernando; Anderson, Tavis K.; Kitron, Uriel D.; Brawn, Jeffrey D.; Ruiz, Marilyn O.; Loss, Scott R.; Walker, Edward D.; Goldberg, Tony L.

Fine-Scale Variation in Vector Host Use and Force of Infection Drive Localized Patterns of West Nile Virus Transmission

Hamer, Gabriel L.; Chaves, Luis Fernando; Anderson, Tavis K. et al.

PLoS ONE, 2011, 6(8), e23767

Permalink : https://hdl.handle.net/2115/48542

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アクセス権	open access
URI	https://hdl.handle.net/2115/48542
タイトル	Fine-Scale Variation in Vector Host Use and Force of Infection Drive Localized Patterns of West Nile Virus Transmission
著者	Hamer, Gabriel L. ; Chaves, Luis Fernando ; Anderson, Tavis K. ; Kitron, Uriel D. ; Brawn, Jeffrey D. ; Ruiz, Marilyn O. ; Loss, Scott R. ; Walker, Edward D. ; Goldberg, Tony L.
著者名 Hamer, Gabriel L.
ORCID 0000-0002-5301-2764 著者名 Chaves, Luis Fernando
著者名 Anderson, Tavis K.
著者名 Kitron, Uriel D.
著者名 Brawn, Jeffrey D.
著者名 Ruiz, Marilyn O.
著者名 Loss, Scott R.
著者名 Walker, Edward D.
著者名 Goldberg, Tony L.
言語	英語
発行日	2011-08-19
収録物名	PLoS ONE
巻(号)	6(8)
ページ	e23767
抄録	The influence of host diversity on multi-host pathogen transmission and persistence can be confounded by the large number of species and biological interactions that can characterize many transmission systems. For vector-borne pathogens, the composition of host communities has been hypothesized to affect transmission; however, the specific characteristics of host communities that affect transmission remain largely unknown. We tested the hypothesis that vector host use and force of infection (i.e., the summed number of infectious mosquitoes resulting from feeding upon each vertebrate host within a community of hosts), and not simply host diversity or richness, determine local infection rates of West Nile virus (WNV) in mosquito vectors. In suburban Chicago, Illinois, USA, we estimated community force of infection for West Nile virus using data on Culex pipiens mosquito host selection and WNV vertebrate reservoir competence for each host species in multiple residential and semi-natural study sites. We found host community force of infection interacted with avian diversity to influence WNV infection in Culex mosquitoes across the study area. Two avian species, the American robin (Turdus migratorius) and the house sparrow (Passer domesticus), produced 95.8% of the infectious Cx. pipiens mosquitoes and showed a significant positive association with WNV infection in Culex spp. mosquitoes. Therefore, indices of community structure, such as species diversity or richness, may not be reliable indicators of transmission risk at fine spatial scales in vector-borne disease systems. Rather, robust assessment of local transmission risk should incorporate heterogeneity in vector host feeding and variation in vertebrate reservoir competence at the spatial scale of vector-host interaction.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
PISSN	1932-6203
EISSN	1932-6203
関連情報	PMID 21886821
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1371/journal.pone.0023767