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EPI 1 > Avian Circoviruses and Chicken Infectious Anemia > Flashcards

Avian Circoviruses and Chicken Infectious Anemia Flashcards

1
Q

Avian circovirus causes clinical signs similar to those seen in PMWS

A

True

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2
Q

Avian circovirus causes clinical signs similar to those seen in PDNS

A

False

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3
Q

The pigeon circovirus is not an important disease because the virus causes feather and beak deformities

A

False

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4
Q

The beak and feather diseases causes typically neurological signs

A

False

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5
Q

In parrots porcine circovirus 2 causes the psittacine beak and feather disease

A

False

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6
Q

The beak and feather disease can be acute problem

A

True

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7
Q

Feather and beak deformities may appear after circovirus infection of geese and pigeons

A

True

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8
Q

Beak and feather disease lesions are sometimes obvious only after molting

A

True

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9
Q

Avian circovirus infections result high morbidity and low mortality

A

True

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10
Q

Pigeon circoviruses are antigenically uniform

A

False

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11
Q

Pigeon circoviruses frequently appear in diseases together with other viruses and bacteria

A

True

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12
Q

Circovirus in geese and ducks can cause retarded growth and feather formation disturbances

A

True

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13
Q

Avian circoviruses do not cause clinical signs in domestic birds

A

False

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14
Q

In ducks and geese, Avian circoviruses can cause retarded growth and
immunosuppression

A

True

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15
Q

Avian circoviruses can spread via breeder eggs

A

True

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16
Q

Avian circoviruses do not cause disease in wild birds

A

False

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17
Q

Avian circoviruses are species specific

A

True

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18
Q

Avian circoviruses can infect many poultry species

A

True

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19
Q

Avian circoviruses can cause retarded growth and immunosuppression

A

True

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20
Q

Inactivated vaccines are used against pigeon circovirus infections

A

False

21
Q

Pigeon circovirus infections do not occur in Hungary, the disease is prevented by vaccination

A

False

22
Q

Circoviruses can infect pigeons

A

True

23
Q

Vaccines are available for Pigeon Circoviruses

A

False

24
Q

Clinical signs of PBFDV (Psittacine Beak and Feather Disease Virus) are only seen at time of moulting

A

False

25
Q

The chicken infectious anaemia virus is also commonly detected in goose

A

F

26
Q

Anaemia and haemorrhages are two important clinical signs of chicken anaemia

A

T

27
Q

The chicken infectious anaemia is a chicken disease up to 1 month of age

A

T

28
Q

The chicken infectious anaemia virus causes only anaemia

A

F

29
Q

The chicken anaemia virus does not replicate in lymphoid progenitors

A

F

30
Q

There are vaccines available against chicken anaemia

A

T

31
Q

The chicken infectious anaemia is a disease of hens

A

F

32
Q

The chicken infectious anaemia causes clinical signs similar to those seen in PDNS

A

F

33
Q

Vertical infectious is not possible in chicken infectious anaemia

A

F

34
Q

Infection of day old chickens with the chicken anaemia virus leads to immune
suppression

A

T

35
Q

Chicken anaemia virus is transmitted both horizontally and vertically

A

T

36
Q

Atrophy of the thymus is a post mortem finding of Chicken Infectious Anaemia virus

A

T

37
Q

Infectious Chicken anaemia virus can cause clinical signs only in layer hens

A

F

38
Q

Infectious chicken anaemia virus causes clinical signs in chicken of 1 to 4 weeks of age

A

T

39
Q

For prevention of infectious chicken anaemia, live attenuated vaccine is available

A

T

40
Q

Infection of day-old chickens with the chicken anaemia virus leads to immune suppression

A

T

41
Q

Chicken anaemia virus infection can result in high mortality of chickens over 3 weeks of age

A

F

42
Q

In Chicken Infectious anaemia, most symptoms are observed in the first month

A

T

43
Q

Chicken Infectious anaemia involves destruction of the lymphoid and myeloid cells

A

T

44
Q

Chicken Infectious anaemia virus induces apoptosis of activated T-cells

A

T

45
Q

Pigeons can be infected by Chicken Infectious anaemia virus

A

F

46
Q

Chicken Infectious anaemia virus does not replicate in the thymus

A

F

47
Q

Chicken Infectious anaemia in day old chickens causes a long-lasting
immunosuppression

A

T

48
Q

Chicken Infectious anaemia virus is a Gyrovirus

A

T

49
Q

Chicken anaemia virus infection can cause death of chickens below 3 weeks of age

A

T

EPI 1 (56 decks)

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