Research Virologist
Email:
jshall@usgs.gov
Office Phone:
608-270-2458
Fax:
608-270-2415
ORCID:
0000-0001-5599-2826
Location
6006 Schroeder Road
Madison
, WI
53711-6223
US
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From 2010-2018 we investigated the occurrence of avian influenza virus in wild birds in Iceland. A total of 6635 swabs samples were collected from wild birds or fecal material directly associated with wild birds. We screened all samples by a real time - polymerase chain reaction (RT-PCR) test with 381 testing positive. Further testing of all RT-PCR positive samples and all negative samples collected in 2012 by virus isolation yielded 120 positives, with 92 of those testing positive by RT-PCR for avian influenza virus.
Categories: Data;
Tags: Akureyri,
Alftanes,
Breidafjordur,
Brimnes,
East Atlantic Flyway, All tags...
Egilsstadir,
Eyjafjordur,
Faxafloi,
Fljotsdalur,
Garður,
Grimsey,
Grindavik,
Grundarfjordur,
Grundarhverfi,
Hafnarfjordur,
Hofn,
Husavik,
Hvalnes,
Hveragerdi,
Iceland,
Kollafjordur,
Lon,
Madison, Wisconsin,
Myrar,
Njardvik,
Reydarfjordur,
Reykjanes,
Rif,
Sandgerdi,
Seljalandsfoss,
Seltjarnarnes,
Skagafjordur,
Snaefellsness,
Sudursveit,
Thveit,
USGS Science Data Catalog (SDC),
USGS-EMA-LOW-SB SMC: Migratory birds,
Vogar,
Wildlife Disease,
avian influenza,
biota,
viruses, Fewer tags
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From 2010-2018 we investigated the occurrence of avian influenza antibody in wild birds in Iceland. A total of 2453 serum samples were collected from wild birds. We tested all samples by enzyme-linked immunosorbent assay (ELISA) for evidence of previous exposure to avian influenza virus with 1302 testing positive.
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This data set is composed of data collected from an experimental study inoculating mallard ducks (Anas platyrhynchos) with Saxitoxin and associated control ducks. Data includes the specific of inoculation, observational behavioral data, daily weights, dosing, results of inoculation, testing of samples collected throughout the study, and necropsy results.
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We experimentally challenged wild Mexican free-tailed bats (TABR) with SARS-CoV-2 to determine the susceptibility, reservoir potential, and population impacts of infection in this species. Of nine bats oronasally inoculated with SARS-CoV-2, five became infected and orally excreted moderate amounts of virus for up to 18 days post inoculation. These five subjects all seroconverted and cleared the virus before the end of the study with no obvious clinical signs of disease. We additionally found no evidence of viral transmission to uninoculated subjects. These results indicate that while TABR are susceptible to SARS-CoV-2 infection, infection of wild populations of TABR would not likely cause mortality.
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Little brown bat (Myotis lucifugus) weights and SARS-CoV2 test results were collected as part of study to assess transmission potential of SARS-CoV2 in North American bat populations. It has been proposed that the SARS-CoV-2 virus originated in Asian bats and subsequently spread through human populations as a pandemic. There is concern that infected humans could transmit the virus to native North American bats, therefore the susceptibility of several North American bat species to the pandemic virus has been experimentally assessed. Big brown bats (Eptesicus fuscus) were shown to be resistant to infection by SARS-CoV-2, while Mexican free-tailed bats (Tadarida brasiliensis) became infected and orally excreted moderate...
Categories: Data;
Tags: Myotis lucifugus,
National Wildlife Health Center (NWHC), Madison, Wi,
SARS-CoV-2,
USGS Science Data Catalog (SDC),
Wildlife Disease, All tags...
biota,
challenge,
histology,
infection,
little brown bat,
pathology,
polymerase chain reaction,
resistance,
susceptibility,
wildlife disease,
zoonotic diseases, Fewer tags
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