Which statement defines zoonosis and identifies appropriate prevention strategies in small animal practice?

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Zoonosis refers to diseases that can be transmitted between animals and people, sometimes in both directions. In small animal practice, prevention focuses on reducing exposure and interrupting transmission through vaccines when available, avoiding contact with infectious materials, and implementing good hygiene and environmental controls.

For rabies, prevention hinges on vaccination of at-risk animals and avoiding bites and exposure to saliva from potentially infected animals. For leptospirosis, prevention includes limiting exposure to contaminated water or urine and using vaccines where available. For ringworm, hygiene and prompt antifungal treatment to infected animals help stop spread. This combination of definition and practical prevention strategies correctly reflects how zoonotic diseases move between species and how veterinarians help minimize risk.

The other statements mischaracterize zoonoses as only transmitted one-way from humans to animals, or as noninfectious, or as limited to insect transmission, which does not accurately describe how these diseases spread or how prevention is planned in practice.