BB LRGPHOR Ch5 - Zoonosis & Occ Health

Question 1

1. What is the mode of transmission for Hantavirus to humans?
   a. Horizontal transmission via aerosolization of urine, feces and saliva
   b. Via rodent bite
   c. Person-to-person transmission
   d. All of the above

Answer 1

d

Question 2

2. Which animal biosafety level is required for work involving inoculation of the Hantavirus into P. maniculatus or other permissive species?

Answer 2

Animal Biosafety level 4

Question 3

3. Which is the non-human host for Lassa Virus?

Answer 3

Mastomys natalensis

Question 4

4. True or False: Infection with Lassa virus is transmitted through contact with feces and urine of infected rodents.

Answer 4

True

Question 5

5. Which is the method to determine the prevalence of the Lassa virus in wild rodent populations?

Answer 5

ELISA antibody assay

Question 6

6. Which species are the known reservoirs for Lymphocytic Choriomeningitis virus?

Answer 6

Mice and hamster

Question 7

7. True or False: Intrauterine infections of human fetuses with Lymphocytic Choriomeningitis can result in hydrocephalus, microencephaly, macroencephaly, intracranial calcification, mental retardation, seizures, and fetal death.

Answer 7

True

Question 8

8. If an infection with LCMV is diagnosed in a rodent colony, what actions need to be taken?

Answer 8

All animals will be euthanized

Question 9

9. What is the mode of transmission of rabies virus?

Answer 9

Bite of a rabid animal or Contamination of wound by saliva form an infected animal

Question 10

11. What is the most common mode of transmission for Coxiella burnetti Infection?

Answer 10

Airborne

Question 11

12. Chronic infected animals shed Coxiell burnetti persistently in

Answer 11

Feces and urine

Question 12

14. What is the agent that causes Rickettsial pox?

Answer 12

Rickettsia akari

Question 13

17. Which is the causative agent of the Rocky Mountain spotted fever?

Answer 13

Rickettsia rickettsii

Question 14

18. Which are reservoirs for Rickettsia rickettsii?

Answer 14

Wild rodents and rabbits

Question 15

19. True or False: The disease of Rocky Mountain spotted fever is asymptomatic in animals.

Answer 15

True

Question 16

20. What are the most common clinical signs in humans affected by Rickettsia rickettsii?

Answer 16

Fever, headache, rash on trunk, palms and soles

Question 17

21. Which are the reservoirs for Chlamydiophila caviae?

Answer 17

Guinea pigs & Rabbits

Question 18

22. Among which laboratory animals besides birds do infections of Chlamydophyla psittaci occur?
    a. Mice, guinea pigs, and hamsters
    b. Rabbits, cats, ferrets and muskrats
    c. Ruminants, swine and frogs
    d. All of the above

Answer 18

d

Question 19

24. Which is the vector which transmits Borrelia burgdorferi?

Answer 19

Deer tick

Question 20

25. What is the genus of the rabbit that presents the greatest hazard as reservoir for Tularemia?

Answer 20

Sylvilagus

Question 21

31. Yersinia pestis disease in humans presents in how many distinctive forms:

Answer 21

3

Question 22

33. Which are the intermediate hosts for Rodentolepis nana, the tapeworm of a hamster?

Answer 22

Flour beetles and fleas

Question 23

34. Which are the reservoirs for Cheyletiella mites?

Answer 23

Rabbit, cat and dog

Question 24

35. Allergic reaction to animals in humans are reported with the highest incidence when working with

Answer 24

rats