Serological assessment of pathogen exposure among desert bighorn sheep in southwestern Arizona
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Abstract
Bighorn sheep (Ovis canadensis) are influenced by infectious diseases. Although Mycoplasma ovipneumoniae has been the main focus of bighorn sheep managers since early 2010, other pathogens may also influence bighorn sheep populations. We sampled desert bighorn sheep (Ovis canadensis mexicana) captured for a study on the Cabeza Prieta National Wildlife Refuge in southwestern Arizona, USA, 2001–2005, for a suite of pathogens: bluetongue (BT), epizootic hemorrhagic disease (EHD), parainfluenza 3, bovine respiratory syncytial virus, Clamydia, seven Leptospira serovars, bovine herpesvirus 1 (causative agent of infectious bovine rhinotracheitis), bovine viral diarrhea virus, and bovine respiratory syncytial virus. We recorded evidence of exposure to seven of these pathogens, with two Leptospira serovars (hardjo and bratislava), five strains of BT, and two strains of EHD detected. Seroprevalence rates of detected pathogens varied between 12–49%. We observed high levels of co-occurrence for EHD and BT. These results highlight that multiple pathogens may influence desert bighorn sheep populations. These data also provide historical context to pathogen exposure for a region where few such data are available.
Study Area
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Serological assessment of pathogen exposure among desert bighorn sheep in southwestern Arizona |
| Series title | The Southwestern Naturalist |
| DOI | 10.1894/0038-4909-68.4.6 |
| Volume | 68 |
| Issue | 4 |
| Year Published | 2025 |
| Language | English |
| Publisher | BioOne |
| Contributing office(s) | Coop Res Unit Seattle |
| Description | 7 p. |
| First page | 294 |
| Last page | 300 |
| Country | United States |
| State | Arizona |
| Other Geospatial | Cabeza Prieta National Wildlife Refuge |