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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 feces of infected wildlife.

CLINICAL SIGNS

Infected wild animals may have bloody diarrhea and appear weak, but there are generally no signs observed. The disease kills infected wild animals quickly and wildlife is usually found dead appearing in good physical condition.

DISEASE MANAGEMENT

Overpopulation, limited food resources and other stress factors may contribute to outbreaks of this disease. Management of populations at or near sustainable levels may help to deter outbreaks. The bacterial spores are long-lived in the environment. Management during outbreaks includes removal and proper disposal of carcasses and removal of infected muskrat lodges.

PUBLIC HEALTH

Tyzzer’s disease is not a risk for people.

ADDITIONAL INFORMATION