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Epi midterm 1 > Epi midterm 1-from the top part 2 > Flashcards

Epi midterm 1-from the top part 2 Flashcards

1
Q

Avian pox viruses are frequently transmitted by insects

A

true

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2
Q

The mucosal form of Fowl pox is benign

A

false

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3
Q

Neurological disorders are frequent in Porcine parvovirus infections.

A

false

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4
Q

The primary site of Porcine parvovirus (PPV-1) replication is in the small intestine.

A

true

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5
Q

Canine parvoviruses are shed in high concentrations with the feces

A

true

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6
Q

Subtypes of Canine parvovirus (CPV-2) cause panleukopenia in cats

A

true

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7
Q

Feline panleukopenia viruses may infect dogs

A

false

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8
Q

Mink parvovirus enteritis is characterized by fever and high mortality

A

true

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9
Q

Live vaccines are used against Aleutian Mink Disease

A

false

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10
Q

Ferrets can also be infected by the Aleutian Mink Disease virus

A

true

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11
Q

Derzsy ́s disease virus can cross into the egg.

A

true

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12
Q

Derzsy ́s disease may occur both in geese and Muscovy chucks.

A

true

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13
Q

Hemorrhagic nephritis and enteritis of geese is caused by herpes viruses.

A

false

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14
Q

Hemorrhagic nephritis and enteritis of geese is present worldwide.

A

true

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15
Q

Porcine circoviruses are genetically and antigenically uniform.

A

false

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16
Q

Porcine circoviruses may cause a variety of diseases

A

true

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17
Q

Infection of day-old chickens with Chicken Anemia Virus leads to immune suppression.

A

true

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18
Q

Avian circovirus infections result high morbidity and low mortality.

A

true

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19
Q

Pigeon circoviruses are antigenically uniform.

A

false

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20
Q

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

A

true

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21
Q

Germinative infection is frequent in mammals, it will result in malformation of the fetuses.

A

false

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22
Q

Galactogen infection cannot happen when the animals receive colostrum, since the antibodies in the colostrum prevent it.

A

false

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23
Q

In the case of horizontal infection animals in the same group infect each other

A

true

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24
Q

Intra uterine infection can occur in pregnant animals

A

true

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25
Q

Pathogenicity means the ability of the agent to cause disease

A

true

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26
Q

Virulence means the level of pathogenicity

A

true

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27
Q

The amount of the agent does not influence the outcome of the infection, since it can replicate in the host.

A

false

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28
Q

In the case of optimal way of infection the least amount of agent can cause disease.

A

true

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29
Q

Stenoxen agents have a wide host range.

A

false

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30
Q

The virulence of the agents is connected to virulence factors.

A

true

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31
Q

Virulence is a stable characteristic of an agent.

A

false

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32
Q

Animals cannot be infected with certain agents if they have species specific resistance

A

true

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33
Q

Live vaccines can contain strains with lower virulence.

A

true

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34
Q

Live vaccines always contain avirulent agents.

A

false

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35
Q

Live vaccines are not used in Europe any more.

A

false

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36
Q

Live vaccines do not provide good immunity.

A

false

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37
Q

Selection method can be used for eradication of infectious diseases, when we remove infected animals.

A

true

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38
Q

In the case of generation shift, newborn animals are separated from the dam and kept isolated.

A

true

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39
Q

Embryo transfer cannot be used for eradication, since the embryo can be infected.

A

false

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40
Q

The selection method cannot be combined vaccination.

A

false

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41
Q

Adenoviruses usually cause central nervous diseases with high lethality.

A

false

42
Q

Only attenuated vaccines can be applied for immunization against adenoviruses.

A

false

43
Q

Urinary bladder wall edema is a typical lesion in Canine adenovirus infection.

A

false

44
Q

Canine adenovirus 2 causes upper respiratory tract infection in dogs.

A

true

45
Q

Bovine adenoviruses usually cause disease in calves.

A

true

46
Q

Crowded keeping conditions may facilitate the spread of adenoviruses in a population.

A

true

47
Q

Marble Spleen Disease virus causes lymphatic tumors in geese.

A

false

48
Q

The Egg drop syndrome virus may cause respiratory disease in young geese.

A

true

49
Q

Herpesviruses usually cause latent infections and life-long virus carries

A

true

50
Q

Infectious Bovine Rhinotracheitis virus (IBRV) can be transmitted through semen.

A

true

51
Q

Pregnant cows can be immunized against IBRV only with attenuated vaccines.

A

false

52
Q

Rodents are the reservoir hosts of the Malignant Catarrhal Fever virus.

A

false

53
Q

Rodents are the natural reservoir hosts of the Aujeszky’s disease virus.

A

false

54
Q

In adult swine the most frequent manifestation of Aujeszky’s disease is encephalitis.

A

false

55
Q

Dogs should be vaccinated against Aujeszky’s disease virus yearly.

A

false

56
Q

Swine Inclusion Body Rhinitis is usually seen in piglets.

A

true

57
Q

Pregnant mares abort usually several weeks after Equid herpesvirus infection.

A

true

58
Q

Only pregnant mares should be immunized against Equid herpesvirus-1 infection.

A

false

59
Q

Equid herpesvirus-2 may cause respiratory disease in foals.

A

true

60
Q

Coital exanthema virus frequently causes abortion.

A

false

61
Q

Canid herpesvirus-1 may cause generalized infection and severe disease in young puppies.

A

true

62
Q

Inactivated vaccines are available for immunization against Canid herpesvirus-1.

A

true

63
Q

Feline Infectious Rhinotracheitis occurs in summer because Felid herpesvirus-1 is transmitted by mosquitoes.

A

false

64
Q

Conjunctivitis is a frequent sign of Feline Infectious Rhinotracheitis.

A

true

65
Q

Germinative route is the most important factor in the transmission of the Infectious Laryngotracheitis virus

A

false

66
Q

Tracheal lesions of Infectious Laryngotracheitis may be similar to those of fowl pox.

A

true

67
Q

Liver dystrophy is a frequent lesion in Duck Viral Enteritis.

A

true

68
Q

Pigeon herpesvirus may cause respiratory disease in young pigeons.

A

true

69
Q

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

A

true

70
Q

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

A

false

71
Q

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

A

true

72
Q

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

A

false

73
Q

Typical pathological finding of PMWS is enlarged mesenteric lymph nodes.

A

true

74
Q

Circovirus infections are immune suppressive.

A

true

75
Q

Porcine circovirus can be transmitted by mice and rats

A

true

76
Q

Porcine dermatitis nephropathy can only be caused by circoviruses.

A

false

77
Q

Porcine circovirus vaccines are available both for sows and for piglets.

A

true

78
Q

Chicken anemia virus is transmitted both horizontally and vertically.

A

true

79
Q

Beak and feather disease lesions are sometimes obvious only after molting

A

true

80
Q

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

A

true

81
Q

PPV-1 is endemic in most pig herds.

A

true

82
Q

Porcine SMEDI can only be induced by parvoviruses.

A

false

83
Q

Bocaviruses may cause mild respiratory or enteric diseases in newborn animals.

A

true

84
Q

Porcine parvovirus is transmitted through the fecal-oral route.

A

true

85
Q

Canine parvovirus is shed with the feces.

A

true

86
Q

Canine parvovirus attacks lymphoid cells.

A

true

87
Q

Typical clinical signs of the Derzsy ́s disease are results of infection below 5 weeks of age

A

true

88
Q

Aleutian mink disease is characterized by type-1 hypersensitivity

A

false

89
Q

Papilloma lesions often have a cauliflower like appearance.

A

true

90
Q

Goose hemorrhagic enteritis and nephritis is frequent in ducks.

A

false

91
Q

Goose hemorrhagic enteritis and nephritis causes death of goslings

A

true

92
Q

Hemorrhagic enteritis and nephritis virus replicates in the blood vessel endothelium.

A

true

93
Q

Poxvirus never cause viraemia and generalized infection

A

false

94
Q

Poxvirus can cause cytoplasmic inclusion bodies.

A

true

95
Q

Poxvirus are strong antigens, except for Orthopoxvirus.

A

false

96
Q

Poxvirus are a strong antigen, except for Parapoxvirus.

A

true

97
Q

Certain rodents are reservoir hosts of Cowpox virus.

A

true

98
Q

Skin lesions may be seen in cats after Cowpox virus infection.

A

true

99
Q

Bovine Papular Stomatitis virus causes vesicles in the oral cavity and hoofs of cattle.

A

false

100
Q

Virulent virus vaccines may be used for immunization against Contagious Pustular Dermatitis of sheep (Orf).

A

true

Epi midterm 1 (6 decks)

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