MT2 - Birna

Question 1

1) Bursitis virus targets the premature B lymphocytes

Answer 1

T

Question 2

2) The bursitis virus causes per os infection

Answer 2

T

Question 3

3) Meat type hybrids are more sensitive to Gumboro disease than layers

Answer 3

F

Question 4

4) Clinical signs of Gumboro disease can be seen in chickens older than 8 weeks

Answer 4

F

Question 5

5) Some Gumboro disease vaccines can be applied only besides yolk immunity

Answer 5

T

Question 6

6) Watery diarrhoea is typical clinical sign of Gumboro disease

Answer 6

T

Question 7

7) There are several virulence variants of bursitis virus

Answer 7

T

Question 8

8) Clinical signs of Gumboro disease can be seen in chickens younger than 8 weeks

Answer 8

T

Question 9

9) Bursitis virus is highly contagious

Answer 9

T

Question 10

10) Immunocomplex vaccines can be applied to prevent Gumboro disease

Answer 10

T

Question 11

11) Clinical signs of Gumboro disease can be seen in chickens younger than 8 days

Answer 11

F

Question 12

12) Before vaccination against Gumboro disease the level of maternal immunity in the flock should be determined

Answer 12

T

Question 13

13) Anaemia and cyanosis can be clinical signs of Gumboro disease

Answer 13

T

Question 14

14) Bursitis virus causes the highest mortality in day old chicks

Answer 14

F

Question 15

15) Viruses are available to control Gumboro disease

Answer 15

T

Question 16

16) The bursitis virus is very sensitive to the environmental conditions

Answer 16

F

Question 17

17) Bursitis virus causes disease only in chicken

Answer 17

F

Question 18

18) The bursitis virus can retain its infectivity for 1-4 months in the litter

Answer 18

T

Question 19

19) Both serotypes of bursitis virus are pathogenic

Answer 19

F

Question 20

20) Bursitis virus infection can reduce the efficacy of vaccinations

Answer 20

T

Question 21

Bursitis virus infection results in immunosuppression

Answer 21

T

Question 22

22) Bursitis virus is shed in the faeces

Answer 22

T