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Epi midterm 1 > Epi midtern 1- from the top part 3 > Flashcards

Epi midtern 1- from the top part 3 Flashcards

1
Q

Germinative infection can happen in birds.

A

true

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2
Q

Galactogen infection is a form of horizontal infections.

A

false

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3
Q

Aerogenic infection is a form of direct infection.

A

false

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4
Q

If an agent is transmitted by the veterinarian, we speak about iatrogenic infection.

A

true

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5
Q

Euryxen agents can infect many host species

A

true

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6
Q

The LD50 value shows the virulence of a strain.

A

true

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7
Q

The virulence of an agent is a stable characteristic of it

A

false

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8
Q

A minimum amount of the agent is necessary to cause disease.

A

true

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9
Q

Subacute diseases last one or 2 days.

A

false

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10
Q

Mortality shows the proportion of dead animals compared to the number of diseases ones.

A

false

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11
Q

Monitoring is routine collection of data on a disease.

A

true

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12
Q

Pandemic disease occurs in large areas, continents

A

true

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13
Q

The principle of “all in all out” is an important way of prevention of infectious diseases

A

true

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14
Q

Isolation of age groups is an important way of prevention of infectious diseases

A

true

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15
Q

Maternal protection occurs only in mammals.

A

false

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16
Q

Colostrum is the main way of maternal protection in the case of animals with epitheliochorial placenta.

A

true

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17
Q

Circovirus can easily be cultured in different homologous cell lines.

A

false

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18
Q

Swine circovirus causes lesions in multiple organs and strong immunosuppression.

A

true

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19
Q

For prevention of Swine circovirus disease only general hygienic measures can be used.

A

false

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20
Q

Swine circovirus can cause retarded growth and strong immunosuppression.

A

true

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21
Q

Swine circovirus caused disease occurs worldwide, it is frequent.

A

true

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22
Q

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

A

true

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23
Q

Infectious Chicken Anemia virus can cause clinical signs only in layer hens.

A

false

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24
Q

Resistance of circovirus is very low, in the environment they are inactivated within a day

A

false

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25
Q

Swine parvovirus is shed in the feces for some weeks after contracting the infection

A

true

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26
Q

Aleutian disease is a parvovirus caused immunocomplex disease of minks.

A

true

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27
Q

Goose parvovirus can spread both horizontally and vertically.

A

true

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28
Q

Cat panleukopenia virus can infect only cats

A

false

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29
Q

Swine parvovirus usually causes fetal damages in first pregnant gilts.

A

true

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30
Q

Aleutian Mink Disease occurs only in the US

A

false

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31
Q

The incubation period of Cat panleukopenia is short, usually 3 to 5 days.

A

true

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32
Q

Papilloma viruses usually cause local infections in epithelial cells.

A

true

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33
Q

For prevention of Parvovirus Mink Enteritis, live attenuated vaccines are available.

A

true

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34
Q

Swine parvovirus maternal antibodies can exist up to 6 to 12 months of age.

A

false

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35
Q

Cat panleukopenia virus can cause abortion in pregnant cats.

A

true

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36
Q

Goose polyomavirus causes hemorrhagic nephritis and enteritis in all age groups.

A

false

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37
Q

Adenoviruses are resistant to detergents.

A

true

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38
Q

Ocular lesions can develop in the extended and chronic stages of canine viral hepatitis.

A

true

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39
Q

Lymphocyte cell count does not change during Canine adenovirus 1 infection.

A

false

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40
Q

No vaccine is available against Canine adenovirus 2

A

false

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41
Q

Adenovirus can cause pneumoenteritis in calves and lambs.

A

true

42
Q

Poor keeping conditions and colostral immunity significantly influence the severity of
adenovirus-associated diseases in cattle.

A

true

43
Q

Anemia and increased mortality are signs of chicken inclusion body hepatitis

A

true

44
Q

The pathologic lesions of egg drop syndrome virus and polyoma virus infection in goose are the same.

A

false

45
Q

Herpesvirus can cause latent, persistent infections.

A

true

46
Q

Bulls can shed the infectious bovine rhinotracheitis virus with semen.

A

true

47
Q

Conjunctivitis and blepharitis are signs of infectious bovine rhinotracheitis virus

A

true

48
Q

Bovine herpesvirus 2 frequently causes abortion.

A

false

49
Q

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

A

false

50
Q

Aujeszky’s disease virus infection in adult pigs is frequently subclinical.

A

true

51
Q

Dogs should be vaccinated against Aujeszky’s disease.

A

false

52
Q

Bloody nasal discharge can be a sign of Swine Inclusion Body Rhinitis.

A

true

53
Q

Only Equine herpesvirus 4 can cause abortions.

A

false

54
Q

Fever and serous nasal discharge are early signs of Equine Viral Rhinopneumonitis.

A

true

55
Q

Immunization against Equine Rhinopneumonitis virus provides life-long protection.

A

false

56
Q

Equine herpesvirus 2 may cause keratoconjunctivitis.

A

true

57
Q

Canine herpesvirus infection can cause abortion.

A

true

58
Q

Conjunctivitis and muco-purulent nasal discharge are frequent signs of Feline
Rhinotracheitis.

A

true

59
Q

The Infectious Laryngotracheitis virus does not cause viraemia.

A

true

60
Q

Ducks are the most susceptible in Infectious Laryngotracheitis virus.

A

false

61
Q

Mallards may transmit the duck enteritis virus to domestic ducks kept in lakes.

A

true

62
Q

Liver dystrophy is a frequent lesion in duck viral enteritis.

A

true

63
Q

Pigeon herpesvirus mainly causes encephalitis in adult pigeons.

A

false

64
Q

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

A

false

65
Q

Serological cross-reactions exist between certain poxvirus species.

A

true

66
Q

In cattle, Cowpox lesions are usually seen on the teats.

A

true

67
Q

In cattle, Pseudo-cowpox lesions are usually seen on the teats.

A

true

68
Q

Calves should be vaccinated against Bovine Papular Stomatitis.

A

false

69
Q

Contagious pustular dermatitis virus may survive in the environment for ages.

A

true

70
Q

Vaccination against contagious pustular dermatitis virus provides lifelong protection.

A

false

71
Q

Sheep pox virus can cause respiratory signs and abortion.

A

true

72
Q

Ruminants are susceptible to the lumpy skin disease virus.

A

true

73
Q

Arthropods play an important role in the transmission of Sheep pox virus.

A

false

74
Q

Arthropods play an important role in the transmission of Lumpy Skin Disease virus.

A

true

75
Q

Arthropods play an important role in the transmission of Myxoma virus.

A

true

76
Q

Arthropods play an important role in the transmission of Fowl pox virus.

A

true

77
Q

Subcutaneous swellings are typical signs of Myxomatosis.

A

true

78
Q

Virulent strains of the myxoma virus are only present in Australia.

A

false

79
Q

The diphteric (wet) form of Fowl pox develops after viraemia and generalized infection.

A

true

80
Q

Attenuated vaccines are available against Fowl pox.

A

true

81
Q

In the case of direct infectious tissues of the infected and the susceptible animals are in contact.

A

true

82
Q

Arthropods can be involved in indirect infections

A

true

83
Q

Fetuses cannot be infested since the placenta completely isolates them.

A

false

84
Q

If the dam infects newborn animals, we speak about horizontal infection.

A

false

85
Q

Certain animal species are resistant against certain agents.

A

true

86
Q

Mycotoxins in the feed can be immune suppressive.

A

true

87
Q

Fetuses have no immune reaction.

A

false

88
Q

There is no local immune reaction in newborn animals.

A

false

89
Q

The incubation time is the time between infection and the appearance of clinical signs.

A

true

90
Q

The animals do not carry the agent after recovery from an infectious disease because the
immune system eliminates it.

A

false

91
Q

In the case of abortive infections, abortion is the main clinical sign.

A

false

92
Q

Tolerated infections result in high level of immune reaction.

A

false

93
Q

There is no maternal immunity in birds.

A

false

94
Q

The immunoglobulin content of the colostrum is not changing in the first week of life.

A

false

95
Q

The colostrum contains maternal lymphocytes.

A

true

96
Q

According to DIVA principle, infected and vaccinated animals can be differentiated.

A

true

97
Q

The resistance of Circoviruses is high, they remain infectious in the environment for several months.

A

true

98
Q

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

A

true

99
Q

For prevention of swine circovirus disease, inactivated vaccine is available.

A

true

100
Q

Avian circoviruses do not cause clinical signs in domestic birds.

A

false

Epi midterm 1 (6 decks)

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