Zoonotic Disease and Public Health Considerations
Core concepts
Wildlife care carries zoonotic risk. Candidates should understand transmission routes (direct contact, aerosol, vector-borne, fecal-oral, bite and scratch), high-risk diseases (rabies, leptospirosis, tularemia, salmonellosis, psittacosis, hantavirus, brucellosis, tuberculosis), and prevention through PPE, vaccination, hygiene, and vector control. Recognizing that immunocompromised, pregnant, and pediatric staff face elevated risk is important. Public health reporting, contact tracing after exposures, and post-exposure prophylaxis for rabies are core knowledge. Understanding the One Health framework, where human, animal, and environmental health intersect, is expected.
Traps in questions
Traps include: (1) assuming an animal must appear ill to shed a zoonotic agent; (2) forgetting that rabies can be transmitted before symptoms appear; (3) underestimating aerosol risk from rodent excreta; (4) confusing pre-exposure prophylaxis with post-exposure management; and (5) missing that a bite or scratch requires immediate wound care and risk assessment, not just cleaning.
Worked rule of thumb
Use the "any mammal bite is a rabies risk until proven otherwise" rule. Example: a staff member bitten by a bat should wash the wound thoroughly, seek immediate medical evaluation, and report the exposure; the bat should be handled only with gloves and submitted for testing per public health guidance. Document the exposure and follow-up in the facility record.