Sean Nashold (Former Employee)
Science and Products
Filter Total Items: 23
Avian influenza virus ecology in Iceland shorebirds: intercontinental reassortment and movement Avian influenza virus ecology in Iceland shorebirds: intercontinental reassortment and movement
Shorebirds are a primary reservoir of avian influenza viruses (AIV). We conducted surveillance studies in Iceland shorebird populations for 3 years, documenting high serological evidence of AIV exposure in shorebirds, primarily in Ruddy Turnstones (Arenaria interpres; seroprevalence = 75%). However, little evidence of virus infection was found in these shorebird populations and only two...
Authors
Jeffrey S. Hall, Gunnar Thor Hallgrimsson, Kamol Suwannanarn, Srinand Sreevatsen, S. Ip, Joshua L. TeSlaa, Sean W. Nashold, Robert J. Dusek
North Atlantic migratory bird flyways provide routes for intercontinental movement of avian influenza viruses North Atlantic migratory bird flyways provide routes for intercontinental movement of avian influenza viruses
Avian influenza virus (AIV) in wild birds has been of increasing interest over the last decade due to the emergence of AIVs that cause significant disease and mortality in both poultry and humans. While research clearly demonstrates that AIVs can move across the Pacific or Atlantic Ocean, there has been no data to support the mechanism of how this occurs. In spring and autumn of 2010 and...
Authors
Robert J. Dusek, Gunnar T. Hallgrimsson, S. Ip, Jón E. Jónsson, Srinand Sreevatsan, Sean W. Nashold, Joshua L. TeSlaa, Shinichiro Enomoto, Rebecca A. Halpin, Xudong Lin, Nadia Federova, Timothy B. Stockwell, Vivien G. Dugan, David E. Wentworth, Jeffrey S. Hall
Evolution of a reassortant North American gull influenza virus lineage: drift, shift and stability Evolution of a reassortant North American gull influenza virus lineage: drift, shift and stability
Background: The role of gulls in the ecology of avian influenza (AI) is different than that of waterfowl. Different constellations of subtypes circulate within the two groups of birds and AI viruses isolated from North American gulls frequently possess reassortant genomes with genetic elements from both North America and Eurasian lineages. A 2008 isolate from a Newfoundland Great Black...
Authors
Jeffrey S. Hall, Joshua L. TeSlaa, Sean W. Nashold, Rebecca A. Halpin, Timothy Stockwell, David E. Wentworth, Vivien Dugan, S. Ip
Avian influenza in shorebirds: experimental infection of ruddy turnstones (Arenaria interpres) with avian influenza virus Avian influenza in shorebirds: experimental infection of ruddy turnstones (Arenaria interpres) with avian influenza virus
Background: Low pathogenic avian influenza viruses (LPAIV) have been reported in shorebirds, especially at Delaware Bay, USA, during spring migration. However, data on patterns of virus excretion, minimal infectious doses, and clinical outcome are lacking. The ruddy turnstone (Arenaria interpres) is the shorebird species with the highest prevalence of influenza virus at Delaware Bay...
Authors
Jeffrey S. Hall, Scott Krauss, J. Christian Franson, Joshua L. TeSlaa, Sean W. Nashold, David E. Stallknecht, Richard J. Webby, Robert G. Webster
Swine influenza's promiscuous past, present, and future Swine influenza's promiscuous past, present, and future
No abstract available.
Authors
Jeffrey S. Hall, Sean W. Nashold, Joshua L. Teslaa
Experimental challenge and pathology of highly pathogenic avian influenza virus H5N1 in dunlin (Calidris alpina), an intercontinental migrant shorebird species Experimental challenge and pathology of highly pathogenic avian influenza virus H5N1 in dunlin (Calidris alpina), an intercontinental migrant shorebird species
Background Shorebirds (Charadriiformes) are considered one of the primary reservoirs of avian influenza. Because these species are highly migratory, there is concern that infected shorebirds may be a mechanism by which highly pathogenic avian influenza virus (HPAIV) H5N1 could be introduced into North America from Asia. Large numbers of dunlin (Calidris alpina) migrate from wintering...
Authors
Jeffrey S. Hall, J. Christian Franson, Robert E. Gill, Carol U. Meteyer, Joshua L. TeSlaa, Sean W. Nashold, Robert J. Dusek, S. Ip
Evaluation of Nobuto filter paper strips for the detection of avian influenza virus antibody in waterfowl Evaluation of Nobuto filter paper strips for the detection of avian influenza virus antibody in waterfowl
The utility of using Nobuto paper strips for the detection of avian influenza antibodies was examined in mallards (Anas platyrhynchos) experimentally infected with low pathogenic avian influenza viruses. Blood was collected 2 wk after infection and was preserved either as serum or whole blood absorbed onto Nobuto strips. Analysis of samples using a commercially available blocking enzyme...
Authors
Robert J. Dusek, Jeffrey S. Hall, Sean W. Nashold, Joshua L. Teslaa, Hon S. Ip
Experimental infection of a North American raptor, American kestrel (Falco sparverius), with highly pathogenic avian influenza virus (H5N1) Experimental infection of a North American raptor, American kestrel (Falco sparverius), with highly pathogenic avian influenza virus (H5N1)
Several species of wild raptors have been found in Eurasia infected with highly pathogenic avian influenza virus (HPAIV) subtype H5N1. Should HPAIV (H5N1) reach North America in migratory birds, species of raptors are at risk not only from environmental exposure, but also from consuming infected birds and carcasses. In this study we used American kestrels as a representative species of a...
Authors
Jeffrey S. Hall, Hon S. Ip, J. C. Franson, C. Meteyer, Sean W. Nashold, Joshua L. Teslaa, J. French, P. Redig, C. Brand
Diagnosis of duck plague in waterfowl by polymerase chain reaction Diagnosis of duck plague in waterfowl by polymerase chain reaction
A recently developed polymerase chain reaction (PCR) assay was used for diagnosis of duck plague in waterfowl tissues from past and current cases of waterfowl mortality and to identify duck plague virus in combined cloacal/oral-pharyngeal swab samples from healthy mallards (Anas platyrhynchos) after a disease outbreak. The PCR was able to detect viral DNA from all the individual or...
Authors
W. R. Hansen, S.W. Nashold, D. E. Docherty, S.E. Brown, D.L. Knudson
Identification of duck plague virus by polymerase chain reaction Identification of duck plague virus by polymerase chain reaction
A polymerase chain reaction (PCR) assay was developed for detecting duck plague virus. A 765-bp EcoRI fragment cloned from the genome of the duck plague vaccine (DP-VAC) virus was sequenced for PCR primer development. The fragment sequence was found by GenBank alignment searches to be similar to the 3′ ends of an undefined open reading frame and the gene for DNA polymerase protein in...
Authors
W. R. Hansen, Sean E. Brown, S.W. Nashold, D.L. Knudson
Preliminary evaluation of a simple in vitro test for the diagnosis of type C botulism in wild birds Preliminary evaluation of a simple in vitro test for the diagnosis of type C botulism in wild birds
An enzyme-linked immunosorbent assay (ELISA) was developed for the detection of type C botulinum toxin (Clostridium botulinum) in wild birds. This simple, antigen-capture ELISA utilizes polystyrene immunosticks as the solid substrate, chicken antitoxin (IgY) as the coating antibody, rabbit antitoxin as the primary antibody, and peroxidase-labeled goat-anti-rabbit as the secondary...
Authors
Tonie E. Rocke, Susan Smith, Sean Nashold
Science and Products
Filter Total Items: 23
Avian influenza virus ecology in Iceland shorebirds: intercontinental reassortment and movement Avian influenza virus ecology in Iceland shorebirds: intercontinental reassortment and movement
Shorebirds are a primary reservoir of avian influenza viruses (AIV). We conducted surveillance studies in Iceland shorebird populations for 3 years, documenting high serological evidence of AIV exposure in shorebirds, primarily in Ruddy Turnstones (Arenaria interpres; seroprevalence = 75%). However, little evidence of virus infection was found in these shorebird populations and only two...
Authors
Jeffrey S. Hall, Gunnar Thor Hallgrimsson, Kamol Suwannanarn, Srinand Sreevatsen, S. Ip, Joshua L. TeSlaa, Sean W. Nashold, Robert J. Dusek
North Atlantic migratory bird flyways provide routes for intercontinental movement of avian influenza viruses North Atlantic migratory bird flyways provide routes for intercontinental movement of avian influenza viruses
Avian influenza virus (AIV) in wild birds has been of increasing interest over the last decade due to the emergence of AIVs that cause significant disease and mortality in both poultry and humans. While research clearly demonstrates that AIVs can move across the Pacific or Atlantic Ocean, there has been no data to support the mechanism of how this occurs. In spring and autumn of 2010 and...
Authors
Robert J. Dusek, Gunnar T. Hallgrimsson, S. Ip, Jón E. Jónsson, Srinand Sreevatsan, Sean W. Nashold, Joshua L. TeSlaa, Shinichiro Enomoto, Rebecca A. Halpin, Xudong Lin, Nadia Federova, Timothy B. Stockwell, Vivien G. Dugan, David E. Wentworth, Jeffrey S. Hall
Evolution of a reassortant North American gull influenza virus lineage: drift, shift and stability Evolution of a reassortant North American gull influenza virus lineage: drift, shift and stability
Background: The role of gulls in the ecology of avian influenza (AI) is different than that of waterfowl. Different constellations of subtypes circulate within the two groups of birds and AI viruses isolated from North American gulls frequently possess reassortant genomes with genetic elements from both North America and Eurasian lineages. A 2008 isolate from a Newfoundland Great Black...
Authors
Jeffrey S. Hall, Joshua L. TeSlaa, Sean W. Nashold, Rebecca A. Halpin, Timothy Stockwell, David E. Wentworth, Vivien Dugan, S. Ip
Avian influenza in shorebirds: experimental infection of ruddy turnstones (Arenaria interpres) with avian influenza virus Avian influenza in shorebirds: experimental infection of ruddy turnstones (Arenaria interpres) with avian influenza virus
Background: Low pathogenic avian influenza viruses (LPAIV) have been reported in shorebirds, especially at Delaware Bay, USA, during spring migration. However, data on patterns of virus excretion, minimal infectious doses, and clinical outcome are lacking. The ruddy turnstone (Arenaria interpres) is the shorebird species with the highest prevalence of influenza virus at Delaware Bay...
Authors
Jeffrey S. Hall, Scott Krauss, J. Christian Franson, Joshua L. TeSlaa, Sean W. Nashold, David E. Stallknecht, Richard J. Webby, Robert G. Webster
Swine influenza's promiscuous past, present, and future Swine influenza's promiscuous past, present, and future
No abstract available.
Authors
Jeffrey S. Hall, Sean W. Nashold, Joshua L. Teslaa
Experimental challenge and pathology of highly pathogenic avian influenza virus H5N1 in dunlin (Calidris alpina), an intercontinental migrant shorebird species Experimental challenge and pathology of highly pathogenic avian influenza virus H5N1 in dunlin (Calidris alpina), an intercontinental migrant shorebird species
Background Shorebirds (Charadriiformes) are considered one of the primary reservoirs of avian influenza. Because these species are highly migratory, there is concern that infected shorebirds may be a mechanism by which highly pathogenic avian influenza virus (HPAIV) H5N1 could be introduced into North America from Asia. Large numbers of dunlin (Calidris alpina) migrate from wintering...
Authors
Jeffrey S. Hall, J. Christian Franson, Robert E. Gill, Carol U. Meteyer, Joshua L. TeSlaa, Sean W. Nashold, Robert J. Dusek, S. Ip
Evaluation of Nobuto filter paper strips for the detection of avian influenza virus antibody in waterfowl Evaluation of Nobuto filter paper strips for the detection of avian influenza virus antibody in waterfowl
The utility of using Nobuto paper strips for the detection of avian influenza antibodies was examined in mallards (Anas platyrhynchos) experimentally infected with low pathogenic avian influenza viruses. Blood was collected 2 wk after infection and was preserved either as serum or whole blood absorbed onto Nobuto strips. Analysis of samples using a commercially available blocking enzyme...
Authors
Robert J. Dusek, Jeffrey S. Hall, Sean W. Nashold, Joshua L. Teslaa, Hon S. Ip
Experimental infection of a North American raptor, American kestrel (Falco sparverius), with highly pathogenic avian influenza virus (H5N1) Experimental infection of a North American raptor, American kestrel (Falco sparverius), with highly pathogenic avian influenza virus (H5N1)
Several species of wild raptors have been found in Eurasia infected with highly pathogenic avian influenza virus (HPAIV) subtype H5N1. Should HPAIV (H5N1) reach North America in migratory birds, species of raptors are at risk not only from environmental exposure, but also from consuming infected birds and carcasses. In this study we used American kestrels as a representative species of a...
Authors
Jeffrey S. Hall, Hon S. Ip, J. C. Franson, C. Meteyer, Sean W. Nashold, Joshua L. Teslaa, J. French, P. Redig, C. Brand
Diagnosis of duck plague in waterfowl by polymerase chain reaction Diagnosis of duck plague in waterfowl by polymerase chain reaction
A recently developed polymerase chain reaction (PCR) assay was used for diagnosis of duck plague in waterfowl tissues from past and current cases of waterfowl mortality and to identify duck plague virus in combined cloacal/oral-pharyngeal swab samples from healthy mallards (Anas platyrhynchos) after a disease outbreak. The PCR was able to detect viral DNA from all the individual or...
Authors
W. R. Hansen, S.W. Nashold, D. E. Docherty, S.E. Brown, D.L. Knudson
Identification of duck plague virus by polymerase chain reaction Identification of duck plague virus by polymerase chain reaction
A polymerase chain reaction (PCR) assay was developed for detecting duck plague virus. A 765-bp EcoRI fragment cloned from the genome of the duck plague vaccine (DP-VAC) virus was sequenced for PCR primer development. The fragment sequence was found by GenBank alignment searches to be similar to the 3′ ends of an undefined open reading frame and the gene for DNA polymerase protein in...
Authors
W. R. Hansen, Sean E. Brown, S.W. Nashold, D.L. Knudson
Preliminary evaluation of a simple in vitro test for the diagnosis of type C botulism in wild birds Preliminary evaluation of a simple in vitro test for the diagnosis of type C botulism in wild birds
An enzyme-linked immunosorbent assay (ELISA) was developed for the detection of type C botulinum toxin (Clostridium botulinum) in wild birds. This simple, antigen-capture ELISA utilizes polystyrene immunosticks as the solid substrate, chicken antitoxin (IgY) as the coating antibody, rabbit antitoxin as the primary antibody, and peroxidase-labeled goat-anti-rabbit as the secondary...
Authors
Tonie E. Rocke, Susan Smith, Sean Nashold