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EPI.o.i.d > Avian Herpes > Flashcards

Avian Herpes Flashcards

1
Q

The infectious laryngotracheitis is seen only in young chickens

A

F

not only chicken - quails turkey peacocks pheasants
but also most common after 6 weeks old

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2
Q

Diarrhoea is frequent in infectious laryngotracheitis of chickens

A

F

local infection in the upper third of the respiratory tract

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3
Q

Infectious laryngotracheitis virus strains may differ in virulence

A

T

low and high mild and typical forms

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4
Q

Encephalitis is a frequent complication in Infectious Laryngotracheitis of chickens

A

F

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5
Q

Ducks are the most susceptible to infectious laryngotracheitis virus

A

F

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6
Q

The infectious laryngotracheitis causes pseudomembrane formation in the oesophagus

A

F

diphtheroid Pseudomembranes in duck plague
ILT= cheesy plugs, haemorrhages, fibrin precipitations

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7
Q

Chickens above 6 weeks of age are not susceptible to infectious laryngotracheitis

A

F

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8
Q

The infectious laryngotracheitis can cause viraemia and pneumonia in young

A

F

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9
Q

Conjunctivitis is a frequent sign of infectious laryngotracheitis

A

T

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10
Q

Infectious laryngotracheitis virus is typically transmitted by the germinative route

A

F

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11
Q

Infectious laryngotracheitis can be deadly in chickens

A

T

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12
Q

Infectious laryngotracheitis is most frequently seen in day-old chickens

A

F

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13
Q

Infectious laryngotracheitis virus is shed mainly with faeces

A

F

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14
Q

Infectious Laryngotracheitis virus replicates in the liver of cats

A

F

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15
Q

Infectious Laryngotracheitis virus replicates in the upper respiratory tract

A

T

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16
Q

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

A

F

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17
Q

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

A

T

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18
Q

The Infectious Laryngotracheitis virus does not cause viraemia

A

T

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19
Q

Infectious Laryngotracheitis is most frequently seen in day-old turkey

A

F

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20
Q

Infectious Laryngotracheitis virus is present worldwide

A

T

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21
Q

Infectious Laryngotracheitis usually occurs clinically under 6 weeks of age

A

F

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22
Q

Infectious Laryngotracheitis causes changes in the larynx and upper airways

A

T

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23
Q

Infectious Laryngotracheitis virus invades the kidneys after viraemia

A

F

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24
Q

Infectious Laryngotracheitis of poultry spreads germinatively

A

F

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25
Q

Infectious Laryngotracheitis also occur in Hungary

A

T

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26
Q

Infectious Laryngotracheitis causes eggshell deformation

A

F

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27
Q

Infectious Laryngotracheitis frequently damages the oviduct of hen

A

F

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28
Q

Infectious Laryngotracheitis can be deadly in chickens

A

T

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29
Q

Mortality of infectious laryngotracheitis can go up to 50%.

A

T

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30
Q

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

A

T

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31
Q

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

A

T

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32
Q

Infection of Marek’s disease can occur in hatchery

A

T

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33
Q

The vaccines of Marek’s disease are not efficient

A

F

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34
Q

The turkey herpesvirus causes cross immunity against Marek’s disease

A

T

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35
Q

Turkey Herpes virus can be used for vaccination against Marek Disease

A

T

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36
Q

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

A

T

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37
Q

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

A

F

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38
Q

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

A

T

vaccination is effective

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39
Q

Lymphoproliferative form of Mareks disease is a chronic disease

A

F

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40
Q

The duck herpesvirus causes cross immunity against Marek disease

A

F

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41
Q

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

A

F

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42
Q

Transient paralysis form of Mareks disease can be present in hens

A

F

hens are old
transient paralysis 4-7 weeks

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43
Q

Lymphoproliferative form of Mareks disease is an acute disease

A

T

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44
Q

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

A

F

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45
Q

There is in ovo vaccine against Mareks disease

A

T

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46
Q

Intake of GaHV2 happens most frequently per os

A

F

virions in the air

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47
Q

Germinative infection does not occur in Mareks disease

A

T

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48
Q

Germinative infection does occur in Mareks disease

A

F

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49
Q

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

A

F

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50
Q

The acute form of Mareks is primarily a tumour formation

A

T

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51
Q

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

A

F

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52
Q

Marek disease virus is shed with faeces in high titres

A

F

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53
Q

Signs of Marek disease may be very similar to reticuloendotheliosis signs

A

T

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54
Q

The Marek disease virus survives for long in the environment

A

T

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55
Q

Marek disease is caused by turkey herpesvirus

A

F

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56
Q

Transient Marek paralysis may lead to visceral form

A

T

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57
Q

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

A

F

death or visceral

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58
Q

The chronic form of Marek disease is characterized by neurological disorders

A

T

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59
Q

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

A

F

60
Q

Marek disease is the result of air born infection

A

T

61
Q

Marek disease usually starts as an airborne infection

A

T

62
Q

Free Marek virus particles are shed from the feather follicles

A

T

63
Q

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

A

T

64
Q

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

A

F

chicken and recently we found tumors in turkeys

65
Q

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

A

T

66
Q

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

A

F

As MDV is a cell-associated herpes virus and is strictly intracellular, antibodies should not have a major role in the protective immunity against MDV infection.

67
Q

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

A

F

68
Q

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

A

T

69
Q

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

A

T

70
Q

Conjunctivitis is a frequent sign of acute Marek’s disease

A

F

71
Q

The Marek ́s disease virus is transmitted by inhalation

A

T

72
Q

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

A

F

73
Q

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

A

T

74
Q

The Marek ́s disease virus causes immunosuppression

A

T

75
Q

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

A

T

76
Q

The neurological form of Marek ́s disease has a mass appearance

A

F

77
Q

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

A

T

78
Q

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

A

F

4-6 weeks and chronic 0.5-1 year

79
Q

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

A

F

80
Q

Both serotypes of the Marek ́s virus cause disease in geese

A

F

81
Q

North America is free of Marek ́s disease

A

F

82
Q

Marek’s disease only occurs in domestic fowl.

A

T

83
Q

Marek’s disease spreads primarily via the aerogenous route

A

T

84
Q

Marek’s disease virus is shed mainly via the faeces

A

F

85
Q

Marek ́s disease in the blood multiplies in the endothelial cells

A

F

86
Q

Marek ́s disease is a beta herpes virus

A

F

87
Q

Marek’s disease primarily targets day old chickens

A

F

88
Q

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

A

T

89
Q

Vaccination is used for the prevention of Marek ́s disease

A

T

90
Q

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

A

F

91
Q

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

A

T

92
Q

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

A

F

93
Q

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

A

T

also in ovo vaccination

94
Q

Live attenuated strains are used for vaccination against Marek ́s disease

A

T

95
Q

No vaccination is needed against Marek’s disease

A

F

96
Q

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

A

T

97
Q

Marek’s disease viruses are uniform in their virulence

A

F

98
Q

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

A

T

99
Q

Conjunctivitis is a frequent sign of duck viral enteritis

A

T

100
Q

Only sporadic clinical cases of duck viral enteritis are seen in an affected flock

A

F

mass mortality fast dead birds floating

101
Q

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

A

T

102
Q

Liver dystrophy is a frequent lesion of duck viral enteritis (duck plague

A

T

103
Q

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

A

T

104
Q

Duck plague virus may be shed life long by animals recovered from the disease

A

T

105
Q

Duck plague (viral enteritis) can’t cause high mortality without secondary bacterial infection

A

F

106
Q

Duck plaque and duck viral enteritis are two names of the same disease

A

T

107
Q

Duck viral enteritis is seldom fatal

A

F

108
Q

Treatment is the most effective control method for duck viral enteritis

A

F

109
Q

Duck plague is more severe in wild birds than in domestic ducks

A

F

110
Q

Duck plague virus damages blood vessel endothelium

A

T

111
Q

Duck plague only affects young ducklings

A

F

112
Q

Duck plague is only seen in day old ducklings

A

F

113
Q

Duck viral enteritis is usually mild, osmotic diarrhoea

A

F

114
Q

Duck plague infects exclusively domestic and wild ducks

A

F

115
Q

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

A

F

116
Q

Beak deformity is a typical sign of Duck Plague

A

F

117
Q

Muscovy duck are resistant to the Duck Viral Enteritis

A

F

118
Q

Duck Plague/Duck viral Enteritis cause high mortality in all ages

A

F

ducklings less susceptible

119
Q

Duck Plague/Duck viral Enteritis clinical signs in young ducks are only seen in birds up to 4 weeks of age

A

F

120
Q

Vaccines containing a live attenuated strain can be used for prevention against Duck Plague

A

T

121
Q

Duck Plague/Duck viral Enteritis vaccination is not needed as clinical signs are mild

A

F

122
Q

Duck Plague virus can “settle” in wild ducks

A

T

123
Q

Duck Plague is an outbreak of Avian influenza in ducks, with a host-adapted version of the virus

A

F

124
Q

Duck Plague only causes hepatitis in young ducks

A

F

125
Q

Duck Plague only causes disease in ducks and geese

A

F
also swans

126
Q

Duck Plague virus causes high mortality in both old and young birds

A

F

mainly old

127
Q

Duck Plague also affects geese

A

T

128
Q

Duck Plague is a disease of young ducks only

A

F

129
Q

Duck Viral Enteritis can affect all age groups

A

T

130
Q

Depression, respiratory signs and bloody diarrhoea are main signs of Duck Plague

A

T

131
Q

In most cases the Duck Plague disease remain symptomless

A

F

132
Q

Duck Plague is more severe in wild birds than domestic ducks

A

F

133
Q

Pigeon herpesvirus mainly causes encephalitis in adult pigeons

A

F

134
Q

Pigeon herpesvirus infections usually result a haemorrhagic deadly disease

A

F

135
Q

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

A

T

136
Q

Pigeon herpesvirus kills mostly day old pigeons

A

F

later in life infection has CS
day old protected from maternal yolk immunity

137
Q

Pigeon herpesvirus infection causes feather development problems

A

F

138
Q

Pigeon herpesvirus infections mainly affect young pigeons

A

T

139
Q

Pigeon herpesvirus mainly causes encephalitis in adult pigeons

A

F

140
Q

Pigeon herpesvirus infection is frequently combined with adenovirus and circovirus infection

A

T

141
Q

Pigeon herpesvirus may cause respiratory disease in young pigeons

A

T

142
Q

Pigeon herpesvirus causes conjunctivitis, rhinitis, pharyngitis and diarrhoea in the acute stage

A

T

143
Q

Pigeon herpesvirus infection is related to Marek’s disease

A

T

Mardivirus genus

144
Q

Pigeon herpesvirus has the highest mortality in day-old pigeons

A

F

145
Q

Diarrhoea and nasal discharge are common in Pigeon herpesvirus infections

A

T

EPI.o.i.d (50 decks)

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