Astroviruses

Question 1

1) Avian nephritis is caused by astroviruses

Answer 1

true

Question 2

2) The mortality of avian nephritis is 50-60%

Answer 2

true

Question 3

3) Avian nephritis replicates in the gut

Answer 3

true

Question 4

4) Broilers are regularly vaccinated against avian nephritis virus

Answer 4

false

Question 5

5) Urate deposition is a postmortem lesion of avian nephritis

Answer 5

true

Question 6

6) Clinical signs of avian nephritis can be seen in the first four weeks of life

Answer 6

true

Question 7

7) Avian nephritis virus usually causes diseases in chickens of 1-3 weeks of age

Answer 7

true

Question 8

8) Avian nephritis is more frequent in waterfowl than in chicken

Answer 8

false

Question 9

9) Avian nephritis virus caused by a picornavirus

Answer 9

false

Question 10

10) Only chickens are susceptible to avian nephritis virus

Answer 10

true

Question 11

11) Avian nephritis virus is transmitted by rodents

Answer 11

false

Question 12

12) Chickens are frequently seropositive for avian nephritis

Answer 12

true

Question 13

13) Attenuated vaccines are used for the prevention of chicken from avian nephritis virus

Answer 13

false