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EPI Final PQ > HERPESVIRUS PART2 > Flashcards

HERPESVIRUS PART2 Flashcards

1
Q

Equine rhinopneumonitis virus is transmitted by arthropods

A

F

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2
Q

For immunisation against equine rhinopneumonitis virus mostly marker vaccines are
used

A

F

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3
Q

Equine rhinopneumonitis virus can cause abortion several weeks after acute infection.

A

T

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4
Q

Equine rhinopneumonitis virus causes cytoplasmic inclusion bodies in the foetal
hepatocytes.

A

F
Herpes-intranuclear incl bodies

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5
Q

Equid herpesvirus 4 more frequently causes encephalitis than Equid herpesvirus 1

A

F
EHV1 more freq

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6
Q

Horses should be vaccinated against equine rhinopneumonitis virus at least every 6
months

A

T

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7
Q

Equine rhinopneumonitis virus causes necrotic foci in the liver of the foetus

A

T(bc of abortion)

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8
Q

Fever and serous nasal discharge are early signs of acute equine rhinopneumonitis

A

T

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9
Q

Equine rhinopneumonitis virus can cause purulent metritis

A

F

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10
Q

Only equine herpesvirus 4 can cause abortion

A

F

-EHV-1
-EHV-4 rearly abortion

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11
Q

Pregnant mares abort usually in the acute phase of equine rhinopneumonitis

A

F

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12
Q

After EHV1 infection pregnant mares abort in the acute febrile stage

A

F
After 5th m
3m-3w after infection

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13
Q

Immunisation against equine rhinopneumonitis virus provides life long protection

A

F

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14
Q

Equine rhinopneumonitis virus is present only in North America

A

F(worldwide)

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15
Q

The equid herpesvirus 1 may cause abortion storms in studs

A

T

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16
Q

Pregnant mares abort usually several weeks after equid herpesvirus 1 infection

A

T

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17
Q

Vaccinated horses cannot get infected with Equid herpesvirus 1

A

F

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18
Q

Equid herpesvirus 1 associated abortions are always sporadic

A

F

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19
Q

Equid herpesvirus 1 may cause subclinical infection in horses

A

T

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20
Q

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

A

F

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21
Q

A single vaccination against Equid herpesvirus-1 provides life-long protection.

A

F

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22
Q

Equine rhinopneumonitis virus can cause only respiratory problems.

A

F
-respiratory
- CNS
- abortion

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23
Q

Both equid herpesvirus 1 and 4 can cause abortion.

A

T

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24
Q

A single vaccination of a horse against EHV-1 induces protection for several years

A

F

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25
Q

Equine herpesvirus-4 primarily causes abortion in horses

A

F

-rarley cause abortion

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26
Q

Equine herpesvirus-4 causes mainly respiratory symptoms in horses.

A

T

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27
Q

Equine herpesvirus-1 contains cross-reactive proteins against disease caused by EHV-4.

A

T

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28
Q

Vaccination containing Equine herpesvirus-1 also provides protection against EHV-4.

A

T-SL

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29
Q

Equine herpesvirus-1 primarily causes respiratory symptoms in horses.

A

F- abortion

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30
Q

Equine herpesvirus-1 primarily causes abortion

A

T

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31
Q

One vaccination is enough to prevent Equine herpesvirus-1.

A

F

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32
Q

Mares infected with Equine herpesvirus-1 have a febrile state, then abort.

A

T

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33
Q

Equine herpesvirus 2 may cause keratoconjunctivitis.

A

T

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34
Q

Equine herpesvirus 2 can cause respiratory disease only in young foals

A

T

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35
Q

Equid herpesvirus-2 may cause respiratory disease in foals.

A

T

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36
Q

Equid herpesvirus 5 may play a role in the equine multinodular pulmonary fibrosis.

A

T

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37
Q

Equid herpesvirus 5 causes encephalitis in foals

A

F
no encephalitis in equine herpesvirus

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38
Q

Equine herpesvirus-2 and 5 causes pustular vulvovaginitis

A

F

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39
Q

Equid herpesvirus-2 may cause Coital Exanthemas in horse.

A

F

EHV-3

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40
Q

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

A

F

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41
Q

In horses infected with Equine herpesvirus-2, the symptoms are often unnoticed.

A

T

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42
Q

Equine herpesvirus-2 in horses does not cause symptoms in adult animals

A

T

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43
Q

It is enough to vaccinate mares 2 times against Equine herpesvirus-2

A

F

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44
Q

Equid herpesvirus 3 can cause lesions on the genital mucosa without abortion

A

T

-no abortion
- multiplication in genital mucosa
- nodules and pustules on the epithelial vagina

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45
Q

Equid herpesvirus 3 may cause coital exanthema in horses

A

T

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46
Q

Abortion is frequent complication of coital exanthema in mares

A

F

-NO ABORTION

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47
Q

Herpesvirus 3 can be transmitted through mating

A

T

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48
Q

Coital exanthema virus frequently causes abortion

A

F

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49
Q

Coital Exanthema virus does not cause abortion.

A

T

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50
Q

Equine Coital Exanthema can cause abortion storms in studs.

A

F

-EHV-1

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51
Q

Equine herpesvirus-3 cause abortion storms.

A

F

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52
Q

Canine herpesvirus infection can cause abortion.

A

T

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53
Q

Herpesvirus infection of adult dogs may result in reproductive disorders

A

T

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54
Q

Canine herpesvirus infection frequently appears with flu like symptoms

A

T

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55
Q

Feline herpesvirus infects dogs as well.

A

F

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56
Q

Liver lesions are frequently seen in puppies with Canid herpesvirus 1 infection.

A

T

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57
Q

Canine herpesvirus infection can cause blue eye disease.

A

F

canine adeno 1

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58
Q

Herpesvirus is frequently causing kennel cough

A

T

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59
Q

Hypothermia and weak immune response facilitate the severity of canid herpes virus
infection of dogs

A

T

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60
Q

Latent canine herpesvirus infection can be activated in pregnant bitches

A

T

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61
Q

Canine herpesvirus can cause transplacental infection

A

T

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62
Q

Pregnant bitches can be immunised against canine herpesvirus with inactivated vaccine

A

T

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63
Q

Herpes infection of pups 2-3 weeks old is fatal

A

T

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64
Q

Canine Herpes virus may remain in latency for years in infected animals.

A

T

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65
Q

Canine herpesvirus 1 may contribute to the kennel cough syndrome

A

T

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66
Q

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

A

T

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67
Q

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

A

T

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68
Q

Upper respiratory infection of Canid herpesvirus-1 may contribute to the kennel cough
syndrome

A

T

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69
Q

In utero infections with Canid herpesvirus may result in abortion.

A

T

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70
Q

Decreased body temperature has a negative effect on Canine herpesvirus infected
animals.

A

T

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71
Q

Herpesvirus infection of dogs is most severe in 3-6 months old puppies.

A

F (< 3 months )

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72
Q

Large dog kennels are usually seropositive for canine herpesvirus.

A

T

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73
Q

Canine herpesvirus infection can be deadly below 2-3 weeks of age.

A

T

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74
Q

Feline rhinotracheitis predisposes to pneumonia caused by Bordetella bronchiseptica.

A

T

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75
Q

Feline rhinotracheitis can cause foetal developmental anomalies in pregnant cats.

A

T

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76
Q

Felid herpesvirus does not cause viraemia and abortion.

A

F

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77
Q

Abortion is uncommon in feline rhinotracheitis of pregnant animals.

A

T-SL

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78
Q

Abortion is rare in rhinotracheitis infected pregnant cats.

A

T-SL

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79
Q

Sneezing is a typical sign of feline infectious rhinotracheitis

A

T

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80
Q

Feline herpesvirus does not cause respiratory signs, only viraemia and abortion

A

F

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81
Q

Conjunctivitis and muco-purulent nasal discharge are frequent signs of feline
rhinotracheitis

A

T

82
Q

Conjunctivitis is a frequent sign of feline rhinotracheitis

A

T

83
Q

Ulcerations of the oral mucosa are frequent signs of Feline Rhinotracheitis

A

F-SL
possible but rare, common in calciV

84
Q

Clinical signs of feline infectious rhinotracheitis are similar to those of calicivirus

A

T

85
Q

Feline infectious rhinotracheitis often results high mortality in susceptible young kittens.

A

F-SL

86
Q

Feline infectious rhinotracheitis often results in abortion of pregnant queens

A

F-SL

87
Q

Felid herpesvirus 1 spreads slowly in cat populations

A

F

88
Q

Feline infectious rhinotracheitis is characterized by inflammation of the upper respiratory tract

A

T

89
Q

Crowded area, poor general condition and stress contribute significantly to the
development of feline infectious rhinotracheitis

A

T

90
Q

Prolonged contact is usually needed for successful transmission of feline infectious
rhinotracheitis

A

F-SL -spreads quickly

91
Q

Feline infectious rhinotracheitis can be treated with specific hyperimmune sera

A

T

92
Q

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

A

F

93
Q

Feline herpesvirus-1 is mainly transmitted by mosquitoes.

A

F

94
Q

Feline Infectious Rhinotracheitis virus is transmitted mainly through the air.

A

T-SL

95
Q

The Feline Infectious Rhinotracheitis virus is very contagious to cats

A

T

96
Q

Mucous is a frequent sign of Feline Infectious Rhinotracheitis.

A

T

97
Q

The infectious laryngotracheitis is seen only in young chickens

A

F
-mainly in growersand adults
-chicken = most
-phesant
-turkey
quail

98
Q

Diarrhoea is frequent in infectious laryngotracheitis of chickens

A

F

-dyspnoea
-eyelid oedema

99
Q

Infectious laryngotracheitis virus strains may differ in virulence

A

T

100
Q

Encephalitis is a frequent complication in Infectious Laryngotracheitis of chickens

A

F

101
Q

Ducks are the most susceptible to infectious laryngotracheitis virus

A

F

102
Q

The infectious laryngotracheitis causes pseudomembrane formation in the oesophagus

A

F- trachea

103
Q

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

A

F

104
Q

The infectious laryngotracheitis can cause viraemia and pneumonia in young

A

F
Mainly growers and adults

105
Q

Conjunctivitis is a frequent sign of infectious laryngotracheitis

A

T

106
Q

Infectious laryngotracheitis virus is typically transmitted by the germinative route

A

F

107
Q

Infectious laryngotracheitis can be deadly in chickens

A

T

108
Q

Infectious laryngotracheitis is most frequently seen in day-old chickens

A

F

109
Q

Infectious laryngotracheitis virus is shed mainly with faeces

A

F

110
Q

Infectious Laryngotracheitis virus replicates in the liver of cats

A

F

111
Q

Infectious Laryngotracheitis virus replicates in the upper respiratory tract

A

T

112
Q

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

A

F

-NO GERMINATIVE INFECTION!

113
Q

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

A

T

114
Q

The Infectious Laryngotracheitis virus does not cause viraemia

A

T

115
Q

Infectious Laryngotracheitis is most frequently seen in day-old turkey.

A

F

-Chicken!

116
Q

Infectious Laryngotracheitis virus is present worldwide

A

T

117
Q

Infectious Laryngotracheitis usually occurs clinically under 6 weeks of age.

A

F

118
Q

Infectious Laryngotracheitis causes changes in the larynx and upper airways.

A

T

119
Q

Infectious Laryngotracheitis virus invades the kidneys after viraemia

A

F

120
Q

Infectious Laryngotracheitis also occur in Hungary.

A

T

121
Q

Infectious Laryngotracheitis of poultry spreads germinatively

A

F

122
Q

Infectious Laryngotracheitis causes eggshell deformation.

A

F

123
Q

Infectious Laryngotracheitis frequently damages the oviduct of hen

A

F

124
Q

Infectious Laryngotracheitis can be deadly in chickens.

A

T

125
Q

Mortality of infectious laryngotracheitis can go up to 50%.

A

T

higherst70% in typical virulent virus

126
Q

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

A

T

127
Q

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

A

T

128
Q

Infection of Marek’s disease can occur in hatchery

A

T

129
Q

The vaccines of Marek’s disease are not efficient.

A

F

Attenuated
Trivalent
Recombinant

130
Q

The turkey herpesvirus causes cross immunity against Marek’s disease

A

T

131
Q

Turkey Herpes virus can be used for vaccination against Marek Disease

A

T

132
Q

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

A

T

133
Q

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

A

F

134
Q

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

A

T

135
Q

Lymphoproliferative form of Mareks disease is a chronic disease

A

F

136
Q

The duck herpesvirus causes cross immunity against Marek disease

A

F
Turkey herpes

137
Q

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

A

F

138
Q

Transient paralysis form of Mareks disease can be present in hens

A

F

4-7wk
Over 8wk subclinical

139
Q

Lymphoproliferative form of Mareks disease is an acute disease

A

T

140
Q

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

A

F
Growers and young hens

141
Q

There is in ovo vaccine against Mareks disease

A

T

142
Q

Intake of GaHV2 happens most frequently per os.

A

F

143
Q

Germinative infection does not occur in Mareks disease

A

T

144
Q

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

A

F

145
Q

Germinative infection does occur in Mareks disease

A

F

146
Q

The acute form of Mareks is primarily a tumour formation.

A

T

147
Q

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

A

T-SL

148
Q

Marek disease virus is shed with faeces in high titre

A

F

feather follicles- inhal

149
Q

Signs of Marek disease may be very similar to reticuloendotheliosis signs

A

T

150
Q

The Marek disease virus survives for long in the environment

A

T

151
Q

Marek disease is caused by turkey herpesvirus

A

F

152
Q

Transient Marek paralysis may lead to visceral form

A

T

153
Q

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

A

F

154
Q

The chronic form of Marek disease is characterized by neurological disorders

A

T

155
Q

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

A

F

156
Q

Transient Marek paralysis may lead to visceral form

A

T

157
Q

Marek disease is the result of air born infection.

A

T

158
Q

Transient paralysis by Marek disease usually ends in full recovery.

A

F

159
Q

Free Marek virus particles are shed from the feather follicles.

A

T

160
Q

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

A

T

161
Q

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

A

F

Domestic fowl, phesant, quail, turkey

162
Q

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

A

T

163
Q

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

A

F

164
Q

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

A

F

165
Q

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

A

T

166
Q

Conjunctivitis is a frequent sign of acute Marek’s disease

A

F

167
Q

The Marek ś disease virus is transmitted by inhalation.

A

T

168
Q

Marek ś disease virus can t́ be prevented by vaccination, because it ́s immunosuppressive.

A

F

169
Q

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

A

T

170
Q

The Marek ś disease virus causes immunosuppression.

A

T

171
Q

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

A

T

172
Q

The neurological form of Marek ś disease has a mass appearance

A

F

173
Q

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

A

T

174
Q

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

A

F

acute 6w
chronic 6m

175
Q

The neurological form of Marek ś disease leads to significant liver degeneration.

A

F

176
Q

Both serotypes of the Marek ś virus cause disease in geese.

A

F

177
Q

North America is free of Marek ś disease.

A

F

178
Q

Marek’s disease only occurs in domestic fowl

A

T-SL

179
Q

Marek’s disease virus is shed mainly via the faeces.

A

F

180
Q

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

A

T

181
Q

Vaccination is used for the prevention of Marek ś disease

A

T

182
Q

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

A

T

183
Q

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

A

F

184
Q

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

A

T

185
Q

Live attenuated strains are used for vaccination against Marek ś disease.

A

T

186
Q

No vaccination is needed against Marek’s disease

A

F

187
Q

Marek’s disease viruses are uniform in their virulence.

A

F

188
Q

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

A

T

189
Q

for immunisation against eq rhinopneumanitits virus mostly marker vaccines are used

A

F

190
Q

horses should be vaccinated against EHV1 every 6 m

A

T-SL

191
Q

Equine herpesvirus 2 may cause keratoconjunctivitis in foals

A

T

192
Q

Fe herpes 1 is moderately contagious, spreads slowly in cat populations

A

F- v contagious

193
Q

Germinative infection does occur in Markes disease

A

F

194
Q

Mareks disease usually starts as an airborne infection

A

T

195
Q

chickens shed the mareks disease virus via feather folliculiar epithelial cells

A

T

196
Q

Mareks disease is primarily spread via the aerogenic route

A

T

197
Q

Mareks disease in the blood multiplies in the endothelial cells

A

F

198
Q

Mareks disease is a beta herpes virus

A

F

alpha

199
Q

Mareks disease primarily targets day old chickens

A

F

200
Q

The neoplastic form of Marek disease is caused by low virulence strains.

A

F

201
Q

The highly virulent Marek’s disease viruses may cause tumours in turkeys

A

T

EPI Final PQ (49 decks)

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