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Epidemiology > Epi midterm from bottom part 5 > Flashcards

Epi midterm from bottom part 5 Flashcards

1
Q

Hemorrhagic enteritis and nephritis virus replicates in the blood vessel endothelium

A

True

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2
Q

Hemorrhagic enteritis and nephritis of geese is only prevalent in France

A

false

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3
Q

Infection over 5 weeks of age results in severe clinical signs of the Derzsy´s disease

A

false

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4
Q

The primary site of replication of the Derzsy´s disease virus is the gut

A

true

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5
Q

Inactivated vaccines are used against Aleutian Mink Disease

A

false

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6
Q

Aleutian Mink Disease virus induces enteritis in older mink

A

false

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7
Q

Aleutian Mink Disease virus can infect ferrets

A

true

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8
Q

Aleutian Mink Disease is characterized by type-1 hypersensitivity

A

false

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9
Q

Vaccinations against Feline panleukopenia usually start at or after 2 months of age.

A

true

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10
Q

Feline panleukopenia virus infection of dogs may cause acute diarrhea

A

false

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11
Q

Feline panleukopenia may be caused by Canine parvoviruses

A

true

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12
Q

Feline panleukopenia is present worldwide.

A

true

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13
Q

Leukopenia is characteristic for successful CPV-2 infections

A

true

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14
Q

Canine parvovirus is shed with the feces.

A

true

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15
Q

Older dogs are usually seropositive for Canine parvovirus (CPV2) subtypes.

A

true

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16
Q

Canine parvovirus infection of susceptible dogs results in high mortality

A

true

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17
Q

Porcine parvoviruses are genetically uniform.

A

false

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18
Q

PPV-1 is endemic in most pig herds

A

true

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19
Q

Piglets of sows seroconverted by PPV-1 are maternally protected for months

A

true

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20
Q

Porcine parvovirus (PPV-1) vaccinations start at or after 6 months of age

A

true

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21
Q

Porcine circoviruses cannot be responsible for reproductive disorders

A

false

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22
Q

PDNS can only be caused by Circoviruses

A

false

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23
Q

Porcine circovirus-2 replicates in the myocardium of the fetus

A

true

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24
Q

Porcine circoviruses are responsible for a variety of clinical conditions

A

true

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25
Q

Porcine circovirus-1 may damage the fetus

A

false

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26
Q

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

A

true

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27
Q

Canine circoviruses are present worldwide

A

false

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28
Q

Immune suppression is characteristic to circovirus infections.

A

true

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29
Q

Inactivated vaccines are used against pigeon circovirus infections

A

false

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30
Q

Beak and feather disease lesions are sometimes obvious only after molting

A

true

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31
Q

Avian circovirus infections cause high morbidity and low mortality

A

true

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32
Q

Chicken Infectious Anemia virus is transmitted both horizontally and vertically

A

false

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33
Q 
The following pox viruses can cause human infections:
a parapoxvirus
b contagious pustular dermatitis virus 
c swine pox virus 
d myxomatosis virus
A

a and b are correct (parapox and contagious pustular dermatitis)

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34
Q

Myxomatosis is mostly seasonal.

A

true

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35
Q

Parapoxvirus infections induce long lasting immunity

A

false

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36
Q

Marek´s disease virus is shed with the feces in high titers

A

false

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37
Q

Turkey herpesvirus can be used as vaccine against Marek´s disease.

A

true

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38
Q

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

A

true

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39
Q

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

A

false

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40
Q

Pigeon herpesvirus kills mostly day-old pigeons.

A

false

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41
Q

Duck Plague Virus may be shed lifelong by animals recovered from the disease

A

true

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42
Q

Antibiotic treatment is the most effective control method for Duck Viral Enteritis

A

false

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43
Q

Infectious Laryngotracheitis is most frequently seen in day-old turkey

A

false

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44
Q

Conjunctivitis is a frequent sign of Infectious Laryngotracheitis of chickens

A

true

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45
Q

Felid herpesvirus-1 is moderately contagious: spreads slowly in cat populations

A

false

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46
Q

Herpesvirus is frequently present in kennel cough.

A

true

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47
Q

In utero infections with Canid herpesvirus may result in abortion

A

true

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48
Q

Equid herpesvirus-2 and 5 cause diarrhea and hepatitis in foals.

A

false

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49
Q

Wild boars are not susceptible to the Aujeszky’s disease virus

A

false

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50
Q

Goats are the reservoir hosts of the Malignant Catarrhal Fever Virus

A

false

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51
Q

Attenuated vaccines are used in pregnant cows against Infectious Bovine Rhinotracheitis
virus

A

false

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52
Q

Adenoviruses may cause hepatitis in chicken.

A

true

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53
Q

Cholelithiasis is frequently seen in Ovine adenovirus-4 infection of rams.

A

false

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54
Q

Canine adenovirus-2 causes upper respiratory tract infection in dogs.

A

true

55
Q

Urinary bladder wall edema is a typical lesion in dogs after Canine adenovirus-1 infection.

A

false

56
Q

Mortality show what proportion of the diseased animals die

A

false

57
Q

Only animals showing clinical signs can shed infective agents

A

false

58
Q

Fetuses have no active immune response

A

false

59
Q

Gastric juice can protect the host from infections

A

true

60
Q

Virulence of a bacterium or virus can be changed spontaneously

A

true

61
Q

The way of the infection (entrance of the agents) can influence its outcome.

A

true

62
Q

Intrauterine infection does not occur in mammals since the fetus is protected.

A

false

63
Q

Iatrogenic infection is when veterinarians transmit the infection from animals to animals.

A

true

64
Q

Attenuated vaccines are forbidden to be used against Fowlpox.

A

false

65
Q

The diphteric (wet) form of Fowlpox causes lesions on the mucous membranes

A

true

66
Q

Virulent strains of the Myxoma virus are persisting in wild rabbits.

A

true

67
Q

Tumour formation in the parenchymal organs is typical of Myxomatosis.

A

false

68
Q

Fowlpox virus causes only transient skin lesions in chicken.

A

true

69
Q

Myxomatosis virus is zoonotic.

A

false

70
Q

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

A

true

71
Q

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

A

false

72
Q

Ruminants are susceptible to the lumpy skin disease virus

A

true

73
Q

Swine pox virus can cause respiratory signs and abortion

A

false

74
Q

Vaccination against Papular Stomatitis virus provides life-long protection

A

false

75
Q

Contagious pustular dermatitis (Orf) virus causes skin lesions in pigs

A

false

76
Q

Bovine Papular Stomatitis can cause skin lesions in humans.

A

true

77
Q

In cattle Pseudopox lesions are usually mild and transient.

A

true

78
Q

In cattle the Cowpox infection is mostly fatal

A

false

79
Q

Serological cross-protectivity exist between certain Poxvirus species but only within
genus.

A

true

80
Q

The Marek´s disease virus causes immunosuppression.

A

true

81
Q

Pigeon herpesvirus is characterised by focal necrosis in the liver in pigeons

A

true

82
Q 
Duck plague (viral enteritis) can´t cause high mortality without secondary bacterial
infections.
A

false

83
Q

Wild ducks may persistently be infected with duck plague (duck enteritis) virus

A

true

84
Q

Chicken above 6 weeks of age are not susceptible to Infectious Laryngotracheitis virus

A

false

85
Q

The Infectious Laryngotracheitis causes pseudomembrane formation in the oesophagus

A

false

86
Q

Feline rhinotracheitis can cause foetal developmental anomalies in pregnant cats.

A

true

87
Q

Canid herpesvirus infection can be cause blue eye disease

A

false

88
Q

Equid herpesvirus-2 may cause Coital Exanthemas in horse

A

false

89
Q

For immunisation against Equine rhinopneumonitis virus mostly marker vaccines are used

A

false

90
Q

Pregnant mares abort usually in the acute phase of Equine rhinopneumonitis

A

false

91
Q

Both equid herpesvirus 1 and 4 can cause abortion

A

true

92
Q

Inclusion Body Rhinitis is predisposing to fatal respiratory disease in pigs

A

false

93
Q

Dogs should be vaccinated against the Aujeszky´s disease

A

false

94
Q

Aujeszky´s disease virus can be latently carried by pigs in the nervous system.

A

true

95
Q

The Aujeszky´s disease virus causes pneumonia in ruminants and carnivores.

A

false

96
Q

Bovine Herpes Mammillitis virus can cause mastitis in cows

A

false

97
Q

Infectious Bovine Rhinotracheitis virus can cause fatal encephalitis in calves.

A

true

98
Q

Infectious Bovine Rhinotracheitis virus is transmitted by arthropods

A

false

99
Q

Herpesviruses can cause latent, persisting infections.

A

true

100
Q

The Egg Drop Syndrome virus causes severe inflammation of the ovaries in hens.

A

false

101
Q

Anaemia and increased mortality are signs of Chicken Inclusion Body Hepatitis.

A

true

102
Q

Adenoviral pneumoenteritis is frequently followed by bacterial secondary infections in
cattle.

A

true

103
Q

Adenoviral pneumoenteritis is rarely fatal in calves and lambs.

A

true

104
Q

Canine laryngotracheitis virus can cause interstitial pneumonia following viraemia.

A

false

105
Q

Puppies between the age of 3 and 6 months are the most sensitive to canine hepatitis.

A

true

106
Q

Canine adenovirus-1 may cause fatal encephalitis in foxes.

A

true

107
Q

Atadenoviruses infect only mammalian hosts

A

false

108
Q

Derzsy disease is caused by Polyomavirus.

A

false

109
Q

Polyomavirus infects parrots

A

true

110
Q

There is no viraemia in papillomavirus infection

A

true

111
Q

Papillomavirus needs keratin for the replication

A

true

112
Q

Aleutian mink disease is type III hypersensitivity

A

true

113
Q

There is a vaccine available for Aleutian Mink Disease.

A

false

114
Q

Enteritis is a clinical sign of Aleutian Mink Disease

A

false

115
Q

Aleutian Mink Disease is caused by Protoparvovirus, like Cat parvovirus

A

false

116
Q 
If a 100 day-old swine foetus is infected with Parvovirus, the clinical signs can be:
a respiratory disease
b weak piglets
c myclonia congenital 
d dermatitis
A

b and c are correct

117
Q 
Pathological lesion(s) of PMWS is/are
a enlarged lymph nodes
b multifocal, red skin lesions 
c ataxia
d pneumonia
A

a and d are true

118
Q

The Circovirus:
a Reproduction is continuous in the dividing cells.
b Is a good antigen.
c Causes generalized lymphoid depletion.
d Only causes the depletion of B-lymphocyte

A

a, b and c are true

119
Q

Generation shift is a frequently used eradication method in swine.

A

false

120
Q

Early weaning is necessary if generation shift method of eradication is used

A

true

121
Q

If eradication is made by selection method, vaccination is forbidden

A

false

122
Q

In the case of selection method of eradication the infected animals are taken out of the
herd.

A

true

123
Q

Live vaccines are dangerous, they are not on the market any more

A

false

124
Q

Live vaccines are less effective than the inactivated ones

A

false

125
Q

Live vaccines can contain attenuated strains.

A

true

126
Q

Live vaccines can contain aviruent strains.

A

true

127
Q

Some agents can spread along the nerves.

A

true

128
Q

In the case of generalised infections the placenta prevents the infection of the foetus.

A

false

129
Q

In the case of generalised infections the agent is generally spreading with blood.

A

true

130
Q

In the case of local infections the lesions can be seen at the site of entry.

A

true

131
Q

In the case of iatrogenic infection the agent is transmitted by humans

A

true

132
Q

Infective agents cannot survive in the soil, so soil cannot be a source of infection

A

false

133
Q

In the case of aerogenic infection the agent is transmitted by the air.

A

true

134
Q

In the case of direct infection the tissues of the infected and the susceptible animal get in
contact

A

true

Epidemiology (6 decks)

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