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Epidemiology 1 > Midterm 1 RETAKE > Flashcards

Midterm 1 RETAKE Flashcards

1
Q

Latent infection can be diagnosed by detection of Ab.

A

F.

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2
Q

Mortality shows the number of dead animals compared with the diseased ones.

A

F.

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3
Q

Monitoring is a routine collection of data on a certain disease.

A

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4
Q

In the case of screening healthy + infected/ diseased are differentiated + recorded.

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5
Q

ELISA can be used for the detection of certain agents.

A

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6
Q

Only results of lab tests with 100% specificity + sensitivity can be accepted.

A

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7
Q

Only eggs from the same herd are allowed to be hatched in the same hatching machine.

A

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8
Q

All- in- all- out principle means that during disinfection the animals have to be driven out of the stable.

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9
Q

The age of animals does ø influence the efficacy of vaccines.

A

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10
Q

Live vaccines always contain avirulent strains.

A

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11
Q

Strains in marker vaccines can be differentiated from field strains.

A

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12
Q

DIVA principle means differentiation of infected + vaccinated animals.

A

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13
Q

Generation shift method is ø used anymore, because of the risk of infection of newborn animals.

A

F.

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14
Q

Selection ( test + remove) method is mainly used in small herds with low level of infection.

A

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15
Q

Selection ( test + remove) method can be combined with vaccination.

A

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16
Q

Embryo transfer from infected into disease free dam is a way of eradication of certain diseases.

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17
Q

PDNS is characterized by type II hypersensitivity.

A

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18
Q

Porcine circoviruses are responsible for a variety of clinical cond.

A

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19
Q

Porcine circovirus 2 replicates in the myocardium of fetus.

A

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20
Q

Porcine circoviruses cannot be responsible for reproductive disorders.

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21
Q

CIA virus is transmitted both horizontally + vertically.

A

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22
Q

Avian circovirus infections cause high mortality.

A

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23
Q

Beak + feather disease lesions are sometimes obvious only after moulting.

A

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24
Q

Inactivated vaccines are used against pigeon circovirus infections.

A

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25
Q

Porcine HoKoviruses are only present in USA.

A

F.

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26
Q

PPV-1 is endemic in most Sus herds.

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27
Q

PPV-1 is transmitted through the fecal- oral route.

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28
Q

PPV-1 vaccinations start at/ after 6 mnths of age.

A

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29
Q

Aleutian mink disease is characterized by type 1 hypersensitivity.

A

F.

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30
Q

Aleutian mink disease virus cannot infect ferrets.

A

F.

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31
Q

Aleutian mink disease virus induces enteritis in older minks.

A

F.

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32
Q

Attenuated vaccines are used against Aleutian mink disease.

A

F.

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33
Q

Derzsy’s disease is caused by parvovirus.

A

T.

34
Q

The virus of Derzsy disease is transmitted vertically.

A

T.

35
Q

Hemorrhagic nephritis + enteritis of geese is caused by parvovirus.

A

F.

36
Q

Mastadenoviruses infect only mammalians.

A

T.

37
Q

Infectious canine hepatitis virus spreads mainly by oral infection.

A

T.

38
Q

Infectious canine hepatitis virus is sp specific ( stenoxenic).

A

F.

39
Q

Infectious canine hepatitis virus frequently causes permanent blindness ( blue eye).

A

F.

40
Q

Canine laryngotracheitis can cause high mortality in kennels.

A

F.

41
Q

Inclusion body hepatitis is characterized by cytoplasmic unclusion bodies in the liver.

A

F.

42
Q

Hepatitis- hydropericardium is caused by a siadenovirus.

A

F.

43
Q

Hemorrhagic enteritis of turkeys causes characteristic spleen lesions.

A

T.

44
Q

Gammaherpesvirus can cause latent infection in the neurons.

A

F.

45
Q

Alphaherpesviruses can be reactivated from latency by immunosuppression.

A

T.

46
Q

The acute phase of an alphaherpes viral infection is always followed by latent infection.

A

F.

47
Q

When latent herpesviral infection is reactivated, ø infective virions are produced.

A

F.

48
Q

Discriminating ELISA distinguishes infected animals from those vaccinated by any kind of vaccines.

A

F.

49
Q

IBoR can spread via the olfactory n. to the brain.

A

T.

50
Q

IBoR causes mainly respiratory disease among calves.

A

T.

51
Q

IBoR causes endemic infection in cattle stock.

A

T.

52
Q

Herpesmamillitis can cause pseudo lumpy skin disease.

A

T.

53
Q

MCF is sp specific ( stenoxenic).

A

F.

54
Q

MCF is a sheep disease.

A

T.

55
Q

MCF is caused by OV herpesvirus 2 ( OHV-2) in Europe.

A

T.

56
Q

Aujeszky’s disease causes meningo- encephalitis in sows.

A

F.

57
Q

Aujeszky’s disease causes meningo- encephalitis in piglets.

A

T.

58
Q

Aujeszky’s disease causes meningo- encephalitis in Car.

A

T.

59
Q

Aujeszky’s disease causes meningo-encephalitis in Ru.

A

T.

60
Q

Eq rhinopneumonitis virus cause lesions in the CNS of foetus.

A

F.

61
Q

Eq coital exanthema can infect also humans ( zoonosis).

A

T.

62
Q

Canine herpesvirus multiplies best at 33- 35ºC.

A

T.

63
Q

Neural form of MD causes latent infection in the neurons.

A

F.

64
Q

ORF, sheep pox + Goat pox viruses belong to the Capripoxvirus genus.

A

F.

65
Q

Lesions of lumpy skin disease appear mainly on the udder + muzzle of cattle.

A

F.

66
Q

Poxviruses cause Cowdry-A type nuclea inclusion bodies in the cell culture.

A

F.

67
Q

Poxviruses induce proliferative lesions ( pocks) inoculated to chorioallantoic membrane.

A

T.

68
Q

Cowpox virus can infect several other sp, + it is also zoonotic.

A

T.

69
Q

Sus pox virus can infect several other sp, + it is also zoonotic.

A

F.

70
Q

Sheep pox virus can infect several other sp, + it is also zoonotic.

A

F.

71
Q

Pseudo- cowpox virus can also infect humans.

A

T.

72
Q

Sheep pox virus is spread mainly by arthropod vectors.

A

F.

73
Q

Lumpy skin disease virus is spread mainly by arthorpod vector.

A

T.

74
Q

ORF virus is spread mainly by arthropod vectors.

A

F.

75
Q

Sus pox virus is spread mainly by arthropod vectors.

A

T.

76
Q

Lumpy skin disease is endemic in Africa.

A

T.

77
Q

Lumpy skin disease virus can’t be detected by PCR.

A

F.

78
Q

Lumpy skin disease is a mainly vector borne disease, causing high mortality.

A

F.

79
Q

Myxomatosis is a mainly vector borne disease, causing high mortality.

A

T.

80
Q

Papillomavirus can occur in Eq.

A

T.

Epidemiology 1 (38 decks)

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