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Epi PQ FINAL Virology > Mareks Disease > Flashcards

Mareks Disease Flashcards

1
Q

In case of viraemia the GaHV2 spreads to fowl’s organs in macrophages.

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2
Q

Transient paralysis form of Marek’s disease can be present in 6-week-old chicken.

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3
Q

Infection of Marek’s disease can occur in hatchery

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4
Q

The vaccines of Marek’s disease are not efficient.

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5
Q

The turkey herpesvirus causes cross immunity against Marek’s disease.

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6
Q

Turkey Herpes virus can be used for vaccination against Marek Disease

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7
Q

Lymphoproliferative form of Marek’s disease can be present in 6-week-old chicken.

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8
Q

Lymphoproliferative form of Marek’s disease can be present in hens (older age).

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9
Q

Clinical signs of Marek’s disease present rare, because of vaccination

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10
Q

Lymphoproliferative form of Mareks disease is a chronic disease

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11
Q

The duck herpesvirus causes cross immunity against Marek disease

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12
Q

The free virions spread to organs independent of cells in the case of Marek disease

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13
Q

Transient paralysis form of Mareks disease can be present in hens

A

F

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14
Q

Lymphoproliferative form of Mareks disease is an acute disease

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15
Q

Neurological form of Mareks disease can be present in 4 week old chicken.

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16
Q

There is in ovo vaccine against Mareks disease

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17
Q

Intake of GaHV2 happens most frequently per os.

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18
Q

Germinative infection does not occur in Mareks disease

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19
Q

Germinative infection does occur in Mareks disease

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F

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20
Q

In case of viraemia the GaHV2 spreads to fowl’s organs in red blood cells

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F

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21
Q

The acute form of Mareks is primarily a tumour formation

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22
Q

Marek disease is usually seen in chickens below 2 weeks of age.

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23
Q

Marek disease virus is shed with faeces in high titres

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24
Q

Signs of Marek disease may be very similar to reticuloendotheliosis signs

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25
Q

The Marek disease virus survives for long in the environment

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26
Q

Marek disease is caused by turkey herpesvirus

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27
Q

Transient Marek paralysis may lead to visceral form

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28
Q

Transient paralysis by Marek’s disease usually ends in full recovery

A

F

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29
Q

The chronic form of Marek disease is characterized by neurological disorders

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T

30
Q

The chronic form of Marek disease is due to circuses of higher virulence

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F

31
Q

Transient Marek paralysis may lead to visceral form

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T

32
Q

Marek disease is the result of air born infection

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T

33
Q

Transient paralysis by Marek disease usually ends in full recovery.

A

F

34
Q

Marek disease usually starts as an airborne infection.

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T

35
Q

Free Marek virus particles are shed from the feather follicles.

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T

36
Q

The Marek’s disease virus may survive in the environment for several months

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T

37
Q

Marek’s disease is most frequently seen in geese and ducks.

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F

38
Q

Free virions of the Marek’s disease virus are formed in the feather follicle epithelial cells.

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T

39
Q

Humoral immunity plays the central role in the host’s defence against the Marek’s disease
virus

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F

40
Q

The neurological form of the Marek’s disease is seen only in day-old chicks.

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F

41
Q

Chicken shed the Marek’s disease virus via feather follicular epithelial cells.

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T

42
Q

The pathological lesions of acute Marek’s disease and reticuloendotheliosis can be similar.

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T

43
Q

Conjunctivitis is a frequent sign of acute Marek’s disease.

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F

44
Q

The Marek ́s disease virus is transmitted by inhalation.

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T

45
Q

Marek ́s disease virus can ́t be prevented by vaccination, because it ́s immunosuppressive.

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F

46
Q

The pathology lesions of acute Marek ́s disease and avian leucosis can be similar.

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T

47
Q

The Marek ́s disease virus causes immunosuppression

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T

48
Q

The acute form of Marek ́s disease is characterized by lymphoid cell proliferation

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T

49
Q

The neurological form of Marek ́s disease has a mass appearance.

A

F

50
Q

The highly virulent strains of Marek ́s disease may cause tumours in turkey.

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T

51
Q

The incubation time of acute Marek ́s disease is 1-2 days

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F

52
Q

The neurological form of Marek ́s disease leads to significant liver degeneration.

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F

53
Q

Both serotypes of the Marek ́s virus cause disease in geese.

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F

54
Q

North America is free of Marek ́s disease.

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F

55
Q

Marek’s disease only occurs in domestic fowl.

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T

56
Q

Marek’s disease spreads primarily via the aerogenous route.

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T

57
Q

Marek’s disease virus is shed mainly via the faeces.

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F

58
Q

Marek ́s disease in the blood multiplies in the endothelial cells

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F

59
Q

Marek ́s disease is a beta herpes virus.

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F

60
Q

Marek’s disease primarily targets day old chickens.

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F

61
Q

The neoplastic form of Marek disease is caused by high virulence strains

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T

62
Q

Vaccination is used for the prevention of Marek ́s disease.

A

T

63
Q

The neoplastic form of Marek’s is caused by low virulence strains

A

F

64
Q

We can differentiate Marek’s disease from reticuloendotheliosis only by lab diagnostics
methods.

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T

65
Q

Prevention against Marek ́s: no measures needed as the disease remains mostly
symptomless.

A

F

66
Q

General preventative measures and vaccination of day-old chickens must be used for the
prevention of Marek’s disease.

A

T

67
Q

Live attenuated strains are used for vaccination against Marek ́s disease

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T

68
Q

No vaccination is needed against Marek’s disease.

A

F

69
Q

The highly virulent strains of Marek’s disease may cause tumors in turkeys.

A

T

70
Q

Marek’s disease viruses are uniform in their virulence.

A

F

71
Q

Highly virulent Marek’s disease viruses may break through vaccine induced protection.

A

T

Epi PQ FINAL Virology (123 decks)

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