Rabies Case Based Flashcards
If you have a dog with no recent vaccine history, that was bitten by an unknown source, what should your plan of action be?
Vaccinate within 96 hours, manage bite wounds, and strict quarantine of dog for 4 months, observing closely for neurologic signs. Alternatively, you could just euthanize the dog immediately.
If you have a dog who is UTD on vaccines, that was bitten by an unknown source, what should your plan of action be?
revaccinate immediately, manage the bite wounds, then confinement at home of the dog for 45 days and observe for neurological signs
T/F: the guidelines in the compendium of animal rabies prevention and control must be followed by everyone
False. Guidelines are voluntarily adopted by state, county, or city level government – or adopted in a modified version
What happens if the dog with a bite of unknown origin was overdue for their booster of rabies?
Appropriate documentation of previous vaccination: treat as Current (1) No documentation: treat as Unvaccinated (2) OR serological monitoring
If a kitten was found 2 weeks ago and vaccines (including rabies) were administered, but a week later, it is exhibiting neurological signs (tremors, aggression, incoordination), what should your plan of action be?
Euthanize immediately and send the brain in for rabies testing.
How do you submit a brain for rabies testing?
Remove the head, place it in a plastic bag, place that in a second plastic bag with a prefrozen cold pack, and place the whole lot in a foam container
If a stray kitten is found in a rabies endemic area, bites the person rescuing it, who wants to keep it but says he’s “wild”, what should you do?
Observe the kitten closely for 10 days and notify authorities. DO NOT VACCINATE till end of 10 days. If kitten is healthy after 10 days, bite victim is not at risk for rabies. If kitten exhibits signs compatible with rabies, euthanize and submit for rabies testing
What is R0?
It is the number of secondary cases generated by a typical infectious individual when the rest of the population is susceptible (i.e. at the start of an outbreak). Each infectious case results in 2 other infections
T/F: The # of infections increases exponentially, depending on R0.
True.
When R0= 1 what happens to the # of cases?
Stays the same. Each infection essentially replaces itself.
What happens if R0<1?
The disease will go extinct.
What happens to R0 if you have vaccinated animals?
It helps bring down the overall R0.
Rabies in dogs has a R0 of 2. What is the critical threshold of herd immunity needed to prevent sustained transmission of rabies in a population of dogs?
50%
Foot-and-mouth disease in cattle has a R0 of 10. What is the critical threshold of herd immunity needed to prevent sustained transmission?
90%
What is the critical minimum proportion to be vaccinated formula?
Vc = (1-1/R0)
