Infectious Disease Management and Biosecurity
Core concepts
Candidates must understand the chain of infection, quarantine, isolation, disinfection, personal protective equipment, and surveillance. Key wildlife diseases include rabies, canine distemper, parvovirus, avian influenza, West Nile virus, white-nose syndrome, chytridiomycosis, and chronic wasting disease. Understanding reservoir versus spillover hosts, zoonotic potential, and reportable disease obligations is essential. Biosecurity includes facility design (separate intake, isolation, and nursery areas), traffic flow, hand hygiene, dedicated equipment, and carcass handling. Vaccination of wildlife patients and of staff is sometimes relevant, but policy varies.
Traps in questions
Traps include: (1) confusing quarantine (new arrivals) with isolation (known or suspected infectious cases); (2) assuming a disinfectant works against all pathogens, when prions and some spores require specific agents; (3) using the same equipment across species without disinfection; (4) missing that some diseases are reportable and require notification before action; and (5) overlooking fomite transmission via staff clothing and footwear.
Worked rule of thumb
Apply the "one-way flow" rule: staff and equipment move from clean to dirty areas, never back, and each species cohort has dedicated tools. Example: a raccoon with neurologic signs should be isolated immediately, handled with gloves and eye protection, and evaluated for rabies per local protocol; the enclosure and equipment are disinfected after use, and the case is reported if required.