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Birds

Immunology and Infectious Disease

Publication Year

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Full-Text Articles in Life Sciences

West Nile Virus West Nile Virus Infection In American Robins: New Insights On Dose Response., Larry Clark Jan 2013

West Nile Virus West Nile Virus Infection In American Robins: New Insights On Dose Response., Larry Clark

Larry Clark

West Nile virus (WNV) is a vector-borne pathogen that was first detected in the United States in 1999. The natural transmission cycle of WNV involves mosquito vectors and avian hosts, which vary in their competency to transmit the virus. American robins are an abundant backyard species in the United States and appear to have an important role in the amplification and dissemination of WNV. In this study we examine the response of American robins to infection with various WNV doses within the range of those administered by some natural mosquito vectors. Thirty American robins were assigned a WNV dosage treatment ...


Wild Bird’S-Eye View Of Influenza Virus A(H1n1), Larry Clark Jan 2009

Wild Bird’S-Eye View Of Influenza Virus A(H1n1), Larry Clark

Larry Clark

Wild bird fecal samples collected and characterized by the USDA as part of a national surveillance effort were sequenced to study the genetic relatedness of avian, swine, and human H1 and N1 subtypes. Our results find that the 2009 H1N1 human outbreak is closely related to swine virus, but falls into different clades in the H1 and N1 trees. Further, there is evidence of multiple viral genetic exchanges between birds and swine. Ongoing research across host species contributes to an understanding of the circulation of influenza viruses.