Chapter 202 - Rabies

Question 1

Which species is most responsible for ongoing spread of rabies in North America?
a) Skunk
b) Insectivorous bats
c) Coyote
d) Raccoon

Answer 1

D

Question 2

What is the recommended action for a vaccinated dog bitten by a rabid animal?
a) Euthanasia
b) 7-day course of favipiravir
c) Wound cleansing and quarantine for 6 months
d) Wound cleansing and provide a booster vaccine as soon as possible

Answer 2

D

Question 3

How long is the duration of risk for development of rabies for an unvaccinated dog exposed to the virus?
a) 1 week
b) 1 month
c) 6 months
d) 6 years

Answer 3

C

Question 4

Which test is the gold standard for diagnosing rabies?
a) Histology on formalin-fixed tissue with special stains
b) Histology on fresh tissue with direct fluorescent antibody testing
c) PCR on tissue from the CNS
d) Serum antibody measurement

Answer 4

B

Question 5

Which special stain can be used to identify Negri bodies in dogs infected with rabies?
a) Masson’s Trichrome
b) Gomori methenamine silver
c) VonKossa
d) Seller’s

Answer 5

D
Masson’s Trichrome – collagenous stroma
Gomori methenamine silver – fungi and Pneumocystis
VonKossa – phosphates and carbonates

Question 6

What samples are required for necropsy to definitively diagnose rabies?
a) Cerebellum and brainstem
b) Thalamus
c) Forebrain at the level of the occipital lobe
d) Peripheral nerve

Answer 6

A