The usefulness of tonsillar biopsy on live deer for preclinical diagnosis of the transmissible spongiform encephalopathy chronic wasting disease (CWD) was evaluated. Disease was tracked in a CWD-endemic herd using serial tonsillar biopsies collected at 6 to 9 month intervals from 34 captive mule deer (Odocoileus hemionus) and five white-tailed deer (O. virginianus). Tonsillar biopsies were exam...

OBJECTIVE To determine the distribution of lesions and extent of tissues infected with Mycobacterium bovis in a captive population of white-tailed deer. DESIGN Cross-sectional study. ANIMALS 116 captive white-tailed deer. PROCEDURE Deer were euthanatized, and postmortem examinations were performed. Tissues with gross lesions suggestive of tuberculosis were collected for microscopic analys...

By H’ mit si KITCHEN, FRANK W . PUTNAM AND \V. JAPE TAYLOR I HE SICKLING OF ERYTHROCYTES under in vitro laboratory conditions has been demonstrated in most species of deer. This remarkable distortion of the erythrocytes from the biconcave disc shape to such bizarre forms as holly leaf, crescent and oat shapes in several species of deer was first described by Gulliver in 1840. Seventy years late...

White-tailed deer are emblematic ungulates that, due to anthropogenic modification of landscapes, currently occur at elevated densities. Elevated deer densities often co-occur with non-native plants, but it is not known if plant invasions are a consequence of deer impacts or occur independent of deer impacts on ecosystems, or whether these two stressors are synergistic. A colloquium on 'Interac...

Intracranial abscessation is a cause of natural mortality among free-ranging white-tailed deer (Odocoileus virginianus) across portions of the United States and Canada. Intracranial abscesses caused by Arcanobacterium pyogenes disproportionately affect adult male white-tailed deer. From 2003-08, we evaluated the occurrence of intracranial abscessation among adult (> or = 2.5 yr) radiocollared m...

By H’ mit si KITCHEN, FRANK W . PUTNAM AND \V. JAPE TAYLOR I HE SICKLING OF ERYTHROCYTES under in vitro laboratory conditions has been demonstrated in most species of deer. This remarkable distortion of the erythrocytes from the biconcave disc shape to such bizarre forms as holly leaf, crescent and oat shapes in several species of deer was first described by Gulliver in 1840. Seventy years late...

Bovine tuberculosis is a bacterial disease caused by Mycobacterium bovis in livestock and wildlife with hosts that include Eurasian badgers (Meles meles), brushtail possum (Trichosurus vulpecula), and white-tailed deer (Odocoileus virginianus). Risk-assessment efforts in Michigan have been initiated on farms to minimize interactions of cattle with wildlife hosts but research on M. bovis on catt...

An unusually large number of cases of Epizootic hemorrhagic disease (EHD) were observed in United States cattle and white-tailed deer in the summer and fall of 2012. USDA APHIS Veterinary Services area offices were asked to report on foreign animal disease investigations and state diagnostic laboratory submissions which resulted in a diagnosis of EHD based on positive PCR results. EHD was repor...

White-tailed deer (Odocoileus virginianus) experimentally infected with a virulent strain of Mycobacterium bovis have been shown to transmit the bacterium to other deer and cattle (Bos taurus) by sharing of pen waste and feed. The risk of transmission of M. bovis bacille Calmette-Guerin (BCG) vaccine from orally vaccinated white-tailed deer to other deer and cattle, however, is not well underst...