Active Immunisation

Question 1

1) Strains used in marker vaccines can be differentiated from the field strains

Answer 1

true

Question 2

2) Avirulent strains can be used in live vaccines

Answer 2

true

Question 3

3) The health state of the vaccinated animals can influence the efficacy of the vaccination

Answer 3

true

Question 4

4) Adjuvants in vaccines increase the shelf life of vaccines

Answer 4

false

Question 5

5) Inactivated vaccines contain inactivated bacterial toxins

Answer 5

true

Question 6

6) The method of vaccination has no effect on the efficacy of the vaccination

Answer 6

false

Question 7

7) Adjuvants in vaccines increase the efficacy of vaccines

Answer 7

true

Question 8

8) Attenuated strains can be used in live vaccines

Answer 8

true

Question 9

9) Deletion vaccines can only be used as live vaccines

Answer 9

false

Question 10

10) Inactivated vaccines can contain the whole agents or their components

Answer 10

true

Question 11

11) The colostral immunoglobulins have no effect on the vaccination of the new born animals

Answer 11

false

Question 12

12) DIVA principle can only be used if the animals are vaccinated with deletion vaccines

Answer 12

false

Question 13

13) According to DIVA principle, infected and vaccinated animals can be differentiated

Answer 13

true

Question 14

14) Subunit vaccines contain only antigens of the agents

Answer 14

true

Question 15

15) Certain parts of the genome are missing from deletion vaccine strains

Answer 15

true

Question 16

16) Some genes are missing from the strains included in deletion vaccines

Answer 16

true

Question 17

17) For safety reasons only inactivated vaccines are used

Answer 17

false

Question 18

18) Live vaccines can contain strains with lower virulence

Answer 18

true

Question 19

19) Live vaccines always contain avirulent agents

Answer 19

false

Question 20

20) Live vaccines are less effective than the inactivated ones

Answer 20

false

Question 21

21) Live vaccines are dangerous, they are not on the market any more

Answer 21

false

Question 22

22) Live vaccines are not used in Europe any more

Answer 22

false

Question 23

23) Live vaccines do not provide good immunity

Answer 23

false

Question 24

24) Marker vaccines are used to mark the site of vaccination

Answer 24

false

Question 25

25) It is not allowed to use inactivated deletion vaccines in the EU

Answer 25

false

Question 26

26) Live vaccines contain attenuated or avirulent agents

Answer 26

true

Question 27

27) The agent in a vaccine can influence the level of the immune response of vaccinated animals.

Answer 27

true

Question 28

28) If deletion vaccines are used, vaccinated and infected animals can be differentiated

Answer 28

true

Question 29

29) Using marker vaccines, vaccinated and infected animals can be differentiated

Answer 29

true

Question 30

30) Use of marker vaccines can be combined with “test and remove” eradication

Answer 30

true

Question 31

31) Marker vaccines are marked with dyes

Answer 31

false

Question 32

32) The immune response produced by an attenuated vaccine is low

Answer 32

false

Question 33

33) Some attenuated vaccine strains can be immunosuppressive

Answer 33

true

Question 34

34) Attenuated vaccines induce a quick immune response.

Answer 34

true

Question 35

35) Vaccines containing attenuated strains are not used anymore

Answer 35

false

Question 36

36) The amount of antigen in the vaccine has no effect on the efficacy of the vaccine

Answer 36

false