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View citations of publications by National Wildlife Health Center scientists since our founding in 1975. Access to full-text is provided where possible.

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Wildlife Disease Case Definitions

Case definitions provide a standardized, science-based set of criteria for diagnosing disease and pathogens. This manual provides case definitions for selected diseases of importance to wildlife in Canada and the United States.

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Additional Resources

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January 1, 2003

Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals

Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and S. canis are related protozoans that can cause mortality in many species of domestic and wild animals. Recently, T. gondii and S. neurona were recognized to cause encephalitis in marine mammals. As yet, there is no report of natural exposure of N. caninum in marine mammals. In the present study, antibodies to T. gondii and N...

Authors

J. P. Dubey, R. Zarnke, N. J. Thomas, S.K. Wong, W. Vanbonn, M. Briggs, J.W. Davis, R. Ewing, M. Mense, O. C. H. Kwok, S. Romand, P. Thulliez

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2003

Failure to transmit avian vacuolar myelinopathy to mallard ducks Failure to transmit avian vacuolar myelinopathy to mallard ducks

Avian vacuolar myelinopathy (AVM) is a neurologic disease that has been diagnosed in free-ranging birds in the southeastern United States. Bald eagles (Haliaeetus leuocephalus), American coots (Fulica americana), and mallards (Anas platyrhynchos) have been affected. Previous investigations have not determined the etiology of this disease. In November and December 2002, we attempted to...

Authors

R. S. Larsen, Felicia B. Nutter, Tom Augspurger, Tonie E. Rocke, Nancy J. Thomas, Michael K. Stoskopf

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2003

Investigating monkeypox in the Wild Investigating monkeypox in the Wild

A recent monkeypox outbreak in pet prairie dogs led to the first recorded human case of the disease in the U.S. The outbreak has USGS scientists concerned the disease may spread to wild rodent populations.

Authors

Christopher J. Brand, Paul Slota

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2003

Helping to combat chronic wasting disease Helping to combat chronic wasting disease

Chronic Wasting Disease (CWD) is a disease of the nervous system that results in distinctive lesions in the brain. CWD affects elk, white-tailed deer, and mule deer, but has not been documented in livestock or humans. The cause is unknown and no treatment is available. Infected deer and elk can appear robust and healthy in the early stages of CWD; it may take several years before they...

Authors

Scott Wright, Paul Slota

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2003

Diagnostic and molecular evaluation of three iridovirus-associated salamander mortality events Diagnostic and molecular evaluation of three iridovirus-associated salamander mortality events

In 1998 viruses were isolated from tiger salamander larvae (Ambystoma tigrinum diaboli and A. tigrinum melanostictum) involved in North Dakota and Utah (USA) mortality events and spotted salamander (A. maculatum) larvae in a third event in Maine (USA). Although sympatric caudates and anurans were present at all three sites only ambystomid larvae appeared to be affected. Mortality at the...

Authors

D. E. Docherty, C.U. Meteyer, Jingyuan Wang, J. Mao, S.T. Case, V. G. Chinchar

Ecosystems Mission Area, National Wildlife Health Center

August 1, 2002

Wading birds as bioindicators of mercury contamination in Florida, USA: Annual and geographic variation Wading birds as bioindicators of mercury contamination in Florida, USA: Annual and geographic variation

Mercury contamination in wetland biota is often dynamic, difficult to predict, and costly to track. In this paper, we present results from a six-year study of growing feathers of piscivorous birds as monitors of wetland Hg exposure in Florida, USA, wetlands. Between 1994 and 2000, we collected feathers of growing great egret (Ardea alba) nestlings from colonies in the freshwater...

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2002

Book review: Ecological indicators for the nation Book review: Ecological indicators for the nation

No abstract available.

Authors

James P. Bennett

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2002

Avian disease at the Salton Sea Avian disease at the Salton Sea

A review of existing records and the scientific literature was conducted for occurrences of avian diseases affecting free-ranging avifauna within the Salton Sea ecosystem. The period for evaluation was 1907 through 1999. Records of the U.S. Department of Agriculture, Bureau of Biological Survey and the scientific literature were the data sources for the period of 1907–1939. The narrative...

Authors

Milton Friend

Ecosystems Mission Area, National Wildlife Health Center, Salton Sea

January 1, 2002

Book review: Experimental design and data analysis for biologists by G.P. Quinn and J.J. Keough Book review: Experimental design and data analysis for biologists by G.P. Quinn and J.J. Keough

No abstract available.

Authors

James P. Bennett

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2002

Landscape ecology of plague in the American southwest, September 19-20, 2000, Fort Collins, Colorado Landscape ecology of plague in the American southwest, September 19-20, 2000, Fort Collins, Colorado

During September 19-20, 2000, a workshop titled "Landscape Ecology of Plague in the American Southwest" was held in Fort Collins, Colorado. The workshop was funded by the U.S. Geological Survey (USGS)-Earth Surface Processes Team and sponsored by the USGS National Wildlife Health Center. Forty scientists and natural resource managers and administrators representing 8 federal agencies, 4...

Authors

Christopher J. Brand

Ecosystems Mission Area, National Wildlife Health Center

January 1, 2002