16 Result(s)
within
Mary J. Pantin-Jackwood
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Article
Open AccessThe pathogenesis of a North American H5N2 clade 2.3.4.4 group A highly pathogenic avian influenza virus in surf scoters (Melanitta perspicillata)
Aquatic waterfowl, particularly those in the order Anseriformes and Charadriiformes, are the ecological reservoir of avian influenza viruses (AIVs). Dabbling ducks play a recognized role in the maintenance and tr...
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Protocol
Immunohistochemical Staining of Influenza Virus in Tissues
Immunohistochemical methods are commonly used for studying the pathogenesis of influenza A virus by allowing the identification of sites of replication of the virus in infected tissues and the correlation with...
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Protocol
Conducting Influenza Virus Pathogenesis Studies in Avian Species
Avian infection studies with influenza A are an important means of assessing host susceptibility, viral pathogenesis, host responses to infection, mechanisms of transmission, viral pathotype, and viral evoluti...
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Article
Open AccessPathobiology and innate immune responses of gallinaceous poultry to clade 2.3.4.4A H5Nx highly pathogenic avian influenza virus infection
In the 2014–2015 Eurasian lineage clade 2.3.4.4A H5 highly pathogenic avian influenza (HPAI) outbreak in the U.S., backyard flocks with minor gallinaceous poultry and large commercial poultry (chickens and tur...
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Article
Open AccessPathobiology of Tennessee 2017 H7N9 low and high pathogenicity avian influenza viruses in commercial broiler breeders and specific pathogen free layer chickens
In March 2017, H7N9 highly pathogenic avian influenza (HPAI) virus was detected in 2 broiler breeder farms in the state of Tennessee, USA. Subsequent surveillance detected the low pathogenicity avian influenza...
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Article
Open AccessInfectivity, transmission and pathogenicity of H5 highly pathogenic avian influenza clade 2.3.4.4 (H5N8 and H5N2) United States index viruses in Pekin ducks and Chinese geese
In late 2014, a H5N8 highly pathogenic avian influenza (HPAI) virus, clade 2.3.4.4, spread by migratory waterfowl into North America reassorting with low pathogenicity AI viruses to produce a H5N2 HPAI virus. ...
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Article
Repeated isolation of virulent Newcastle disease viruses of sub-genotype VIId from backyard chickens in Bulgaria and Ukraine between 2002 and 2013
Here, we report the circulation of highly related virulent Newcastle disease viruses (NDV) in Bulgaria and Ukraine from 2002 until 2013. All of these NDV isolates have the same virulence-associated cleavage si...
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Article
Open AccessH5N2 Highly Pathogenic Avian Influenza Viruses from the US 2014-2015 outbreak have an unusually long pre-clinical period in turkeys
From December 2014 through June 2015, the US experienced the most costly highly pathogenic avian influenza (HPAI) outbreak to date. Most cases in commercial poultry were caused by an H5N2 strain which was a re...
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Article
Open AccessAge is not a determinant factor in susceptibility of broilers to H5N2 clade 2.3.4.4 high pathogenicity avian influenza virus
In 2014–2015, the US experienced an unprecedented outbreak of H5 clade 2.3.4.4 highly pathogenic avian influenza (HPAI) virus. The H5N2 HPAI virus outbreak in the Midwest in 2015 affected commercial turkey and...
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Article
Open AccessPrevious infection with virulent strains of Newcastle disease virus reduces highly pathogenic avian influenza virus replication, disease, and mortality in chickens
Highly pathogenic avian influenza virus (HPAIV) and Newcastle disease virus (NDV) are two of the most important viruses affecting poultry worldwide and produce co-infections especially in areas of the world wh...
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Protocol
Immunohistochemical Staining of Influenza Virus in Tissues
Immunohistochemical methods are commonly used for studying the pathogenesis of influenza A virus by allowing the identification of sites of replication of the virus in infected tissues and the correlation with...
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Protocol
Conducting Influenza Virus Pathogenesis Studies in Avian Species
Avian infection studies with influenza A virus are an important means of assessing host susceptibility, viral pathogenesis, host responses to infection, mechanisms of transmission, and viral pathotype. Complex...
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Article
Open AccessThe pathogenesis of low pathogenicity H7 avian influenza viruses in chickens, ducks and turkeys
Avian influenza (AI) viruses infect numerous avian species, and low pathogenicity (LP) AI viruses of the H7 subtype are typically reported to produce mild or subclinical infections in both wild aquatic birds a...
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Article
A single substitution in amino acid 184 of the NP protein alters the replication and pathogenicity of H5N1 avian influenza viruses in chickens
Changes in the NP gene of H5N1 highly pathogenic avian influenza (HPAI) viruses have previously been shown to affect viral replication, alter host gene expression levels and affect mean death times in infected...
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Article
Sequence and phylogenetic analysis of the S1 genome segment of turkey-origin reoviruses
Based on previous reports characterizing the turkey-origin avian reovirus (TRV) σB (σ2) major outer capsid protein gene, the TRVs may represent a new group within the fusogenic orthoreoviruses. However, no sequen...
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Article
Phylogenetic Analysis of Turkey Astroviruses Reveals Evidence of Recombination
Sequence data was obtained from the capsid (ORF-2) and the polymerase (ORF-lb) genes of 23 turkey astrovirus (TAstV) isolates collected from commercial turkey flocks around the United States between 2003 and 2...
