BoVD

Question 1

Attenuated vaccine strains against BoVDV may be foetopathic effects.

Answer 1

T.

Question 2

Eradication of BoVD is based on the removal of immunotolerance.

Answer 2

T.

Question 3

The only efficient way of BoVD eradication is the replacement of all the animals in the farm.

Answer 3

F.

Question 4

In sheep, BoVD may cause a disease similar to the border disease.

Answer 4

T.

Question 5

BoVD + Mucosal disease are caused by the same virus sp.

Answer 5

T.

Question 6

Mucosal disease usually emerges in cattle farms as explosive outbreaks with high morbidity.

Answer 6

F.

Question 7

Sus are ø susceptible for BoVDV.

Answer 7

F.

Question 8

2 serotypes of the BoVDV are known so far, serotypes 2 is more virulent.

Answer 8

T.

Question 9

BoVDV cannot be propagated in cell cultures.

Answer 9

F.

Question 10

BoVDV is practically sensitive to disinfectants.

Answer 10

T.

Question 11

Rodents play a central role in the maintenance of BoVDV in the environment.

Answer 11

F.

Question 12

BoVD cannot be transmitted with AI.

Answer 12

F.

Question 13

Non- cytopathic BoVD strain can mutate + become cytopathic.

Answer 13

T.

Question 14

Intrauterine BoVD infection always cause abortion.

Answer 14

F.

Question 15

Cytopathic + non- cytopathic biotypes of BoVDV are known.

Answer 15

T.

Question 16

Wild birds are the natural hosts of the BoVDV.

Answer 16

F.

Question 17

Environmental contamination does ø play a role in the spread of BoVDV.

Answer 17

F.

Question 18

The BoVDV typically damages endothelial epithelial- + lymphatic tissues.

Answer 18

T.

Question 19

Cattle which are immune- tolerant to BoVDV may develop mucosal disease.

Answer 19

T.

Question 20

Mucosal disease, only inactivated vaccines can be used for the prevention against BoVD.

Answer 20

F.

Question 21

Cytopathic BoVDV strains cause mucosal disease in immune- tolerant calves.

Answer 21

T.

Question 22

Non- cytopathic BoVDV infections have immunosuppressive effect.

Answer 22

T.

Question 23

Because Europe is free from BoVD, it if forbidden to use vaccines against it.

Answer 23

F.

Question 24

The BoVDV genotype 2 is less virulent than genotype 1.

Answer 24

F.

Question 25

BoVDV infection may cause immunisuppression.

Answer 25

T.

Question 26

BoVDV in sheep causes border disease- like illness.

Answer 26

T.

Question 27

2 genotypes of BoVDV are known.

Answer 27

T.

Question 28

BoVDV forms 1 serotype, but there are significant antigenuc differences betweem the strains.

Answer 28

T.

Question 29

Persistently infected animals play the major role in the maintenance + spread of BoVDV.

Answer 29

T.

Question 30

Because IBoVDV is an immunosuppressive virus, ø vaccines available against it.

Answer 30

F.