Seroprevalence of West Nile Virus in feral horses on Sheldon National Wildlife Refuge, Nevada, United States
American Journal of Tropical Medicine and Hygiene
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Abstract
We screened 1,397 feral horses (Equus caballus) on Sheldon National Wildlife Refuge, Nevada, United States, for IgM and IgG against flavivirus during 2004–2006, 2008, and 2009. Positive serum samples were tested for neutralizing antibodies to West Nile virus (WNV) and St. Louis encephalitis virus (SLEV). One animal was positive for antibody against WNV in 2004, but all others tested in 2004–2006 were negative. In 2008 and 2009, we found evidence of increasing seropositive horses with age, whereas seroprevalence of WNV decreased from 19% in 2008 to 7.2% in 2009. No horses were positive for antibody against SLEV. Being unvaccinated, feral horses can be useful for WNV surveillance.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Seroprevalence of West Nile Virus in feral horses on Sheldon National Wildlife Refuge, Nevada, United States |
| Series title | American Journal of Tropical Medicine and Hygiene |
| DOI | 10.4269/ajtmh.2011.10-0467 |
| Volume | 84 |
| Issue | 4 |
| Year Published | 2011 |
| Language | English |
| Publisher | The American Society of Tropical Medicine and Hygiene |
| Publisher location | Deerfield, IL |
| Contributing office(s) | National Wildlife Health Center |
| Description | 4 p. |
| First page | 637 |
| Last page | 640 |
| Time Range Start | 2004-01-01 |
| Time Range End | 2009-12-31 |
| Country | United States |
| State | Nevada |
| Other Geospatial | Sheldon National Wildlife Refuge |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |