Wildlife Habitat
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West Nile virus
West Nile virus (WNV) is a viral disease that was commonly found in Africa, Europe, the Middle East and West Asia. It first appeared in New York in 1999 and quickly spread throughout North America. It was first detected in Wisconsin in 2001. WNV has…
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Warbles (Cuterebra botfly larvae)
Warbles is a term that describes bumps under the skin that are caused by infection with fly larvae. In wild mammals, this condition involves the larvae of the botfly, Cuterebra sp. Cuterebra warbles are most commonly seen in squirrels,…
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Tyzzer's disease (Clostridium piliforme)
Tyzzer's disease is a bacterial infection caused by the spore-forming bacterium, Clostridium piliforme. It is found in muskrats and cottontail rabbits. TRANSMISSION The likely method of transmission is through the ingestion of spores in the…
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Tularemia (rabbit fever, beaver fever)
Tularemia is also known as "beaver fever" or "rabbit fever". It is caused by a bacterium, Francisella tularensis. This bacterial disease is not common in Wisconsin but is most frequently found in Wisconsin muskrats, beaver, or rabbits.…
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Trichomoniasis in birds
Trichomoniasis is an infectious disease of birds that is caused by a protozoan (single-celled) parasite, Trichomonas gallinae. Pigeons and doves are mostly affected, but other species, such as finches, can become infected. In Wisconsin, it has…
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Squirrel pox
Squirrel pox, also called squirrel fibroma, is caused by a poxvirus called squirrel fibroma virus, which is related to other poxviruses. This disease is characterized by varying sizes and numbers of wart-like growths or fibromas on the skin of…
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Snake fungal disease (SFD)
Snake fungal disease (SFD) is an emerging disease that impacts numerous species of snakes and has been found throughout much of the eastern United States. It is caused by a fungus, Ophidiomyces ophiodiicola, and can cause lumps along the snake’…
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Severe Perkinsea infection of frog tadpoles
Severe Perkinsea infection (SPI) is an emerging disease of frogs and is the third most common infectious disease of frogs after chytridiomycosis (infection with chytrid fungus) and ranavirus. It was first detected in 1999 in New Hampshire with…
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Salmonellosis
Salmonellosis is a bacterial disease that infects a variety of species including mammals, reptiles and birds. There are many strains of the bacteria all belonging to the genus Salmonella. Salmonellosis is found in most avian species throughout…
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Raccoon roundworm
The Raccoon roundworm, Baylisascaris procyonis, is an internal parasite of raccoons. The parasite lives in the intestinal tract of raccoons and generally does not harm the raccoon unless the raccoon is otherwise debilitated.