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EPI PQ > HERPESVIRUS > Flashcards

HERPESVIRUS Flashcards

1
Q

Herpesviruses are good antigens.

A

F

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2
Q

Alphaherpesviruses are host specific slowly multiplying (>24hrs) viruses

A

F (betaherpesvirus is more than 24 h)

<24 h

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3
Q

Alphaherpesviruses may cause latent infection in neurons of ganglia

A

T

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4
Q

Herpesviruses are sensitive to detergents

A

T

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5
Q

Some herpesviruses have a broad host spectrum (euryxen)

A

T

  • aujeszky
  • malignant catarrhal fever
  • turkey herpesvirus
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6
Q

Gammaherpesviruses may cause latent infection in neurons of ganglia

A

F

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7
Q

Herpes viruses are resistant to detergents

A

F

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8
Q

Herpesviruses are generally weak antigens

A

T

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9
Q

Herpesviruses can cause latent persistent infections

A

T

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10
Q

Herpesviruses are typically stenoxen viruses, but there are significant exceptions

A

T

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11
Q

Herpesviruses are strong antigens, therefore single vaccinations provide lifelong
protection

A

F

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12
Q

Herpesviruses are enveloped viruses, therefore they are sensitive to detergents

A

T

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13
Q

There are no serological cross-reactions between different herpesvirus species.

A

F

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14
Q

Because the genome of herpesvnruses is very stable, no attenuated mutant vaccine
strains are available.

A

F

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15
Q

Infectious bovine vulvovaginitis virus strains cause abortions and foetal deformities

A

F

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16
Q

Herpesvirus infections frequently result in latent virus carry.

A

T

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17
Q

Herpesviruses usually cause latent infections and life-long virus carries

A

T

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18
Q

Infectious bovine rhinotracheitis virus can cause abortion.

A

T (sporadic , mainly in heifers)

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19
Q

The use of marker vaccines can help the eradication of infectious bovine rhinotracheitis
virus.

A

T

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20
Q

The most frequently used eradication strategy for IBRV is selection with the help of
marker vaccines

A

T

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21
Q

Marker vaccines can be used in IBRV eradication programs in cattle farms.

A

T

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22
Q

Antibodies against infectious bovine rhinotracheitis virus (IBRV) might be detected in the
milk

A

T

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23
Q

Conjunctivitis and blepharitis are signs of infectious bovine rhinotracheitis.

A

T

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24
Q

The infectious bovine rhinotracheitis virus (IBRV) causes haemorrhagic gastroenteritis.

A

F

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25
Q

Infectious bovine rhinotracheitis virus also causes mastitis in cows

A

F

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26
Q

Infectious bovine rhinotracheitis virus is transmitted by arthropods

A

F

Aerogen, po

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27
Q

Infectious bovine rhinotracheitis virus can cause fatal encephalitis in calves

A

T

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28
Q

Infectious Bovine Rhinotracheitis virus frequently causes encephalitis in old cow and
bulls

A

F (calves)

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29
Q

Infectious Bovine Rhinotracheitis virus frequently causes encephalitis in old sow and bulls

A

F (calves)

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30
Q

Infectious Bovine Rhinotracheitis can be endemic on cattle farms

A

T

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31
Q

Infectious bovine rhinotracheitis virus can cause skin lesions on the genitals

A

T

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32
Q

Bulls can shed the infectious bovine rhinotracheitis with semen

A

T

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33
Q

Pregnant cows should be immunized with inactivated vaccines against IBRV

A

T

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34
Q

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

A

F

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35
Q

Because Bovine herpesvirus l causes latent infections; it is not possible to eradicate it
from a cattle population

A

F

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36
Q

Bovine herpesvirus l may cause encephalitis in calves.

A

T

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37
Q

IBRV may cause encephalitis in calves.

A

T

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38
Q

Only inactivated vaccines are available against Bovine herpesvirus l.

A

F

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39
Q

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

A

F

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40
Q

Bovine herpesvirus 1 may be transmitted through semen.

A

T

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41
Q

Seropositive cattle cannot be carriers of the Infections Rhinotracheitis virus

A

F

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42
Q

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

A

F

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43
Q

Bovine herpesvirus l may cause encephalitis in calves.

A

T

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44
Q

Only inactivated vaccines are available against Bovine herpesvirus l.

A

F

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45
Q

The IBR virus causes nephritis in calves usually in the age between one and six months.

A

F

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46
Q

Infectious Bovine Rhinotracheitis (IBR) cause serous nasal discharge.

A

F

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47
Q

Infectious Bovine Rhinotracheitis in 6-month-old calves usually causes pneumonia.

A

T

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48
Q

Infectious Bovine Rhinotracheitis in cattle 6 months of age can cause encephalitis.

A

F ( <5 months old)

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49
Q

Infectious Bovine Rhinotracheitis often cause genital lesions with vesicles.

A

T

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50
Q

Infectious Bovine Rhinotracheitis may cause inflammation of conjunctiva

A

T

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51
Q

Infectious Bovine Rhinotracheitis cause purulent discharge.

A

T

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52
Q

In Hungary the gE-negative marker vaccine is to be used in the control of Infectious Bovine Rhinotracheitis.

A

T

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53
Q

Infectious Bovine Rhinotracheitis is rapidly spread within the herd.

A

F

Slow spread

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54
Q

Infectious Bovine Rhinotracheitis is no longer present in Hungary.

A

F

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55
Q

The respiratory form of Infectious Bovine Rhinotracheitis is often followed by genital symptoms.

A

F

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56
Q

Infectious Bovine Rhinotracheitis spreads slowly within a herd.

A

T

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57
Q

We can see characteristic clinical signs of Infectious Bovine Rhinotracheitis in day-old calves

A

F

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58
Q

We are doing Infectious Bovine Rhinotracheitis virus eradication programs in Hungary

A

T

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59
Q

Infectious Bovine Rhinotracheitis virus mainly cause encephalitis in cattle older than 6 months.

A

F ( <5 months)

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60
Q

Infectious Bovine Rhinotracheitis mainly causes pneumonia in 1-6 months old calves.

A

T

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61
Q

Infectious Bovine Rhinotracheitis is rare, BHV-1 only affects cattle.

A

F

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62
Q

In the transmission IBRV, the most important route is the germinative route

A

F

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63
Q

Genital form of IBR is often followed by abortion

A

F

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64
Q

IBR can occur in several clinical forms.

A

T

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65
Q

\IBR is a frequent infection, cattle and its closest relatives are affected

A

T

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66
Q

Bovine Herpes virus 2 frequently causes abortion

A

F

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67
Q

Bovine herpes mamillitis virus can cause mastitis in cows

A

T

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68
Q

Bovine herpes mamillitis virus may cause lesions on the muzzle of suckling calves

A

T

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69
Q

The bovine herpes mamillitis virus causes lesions on the skin of the milkers, therefore it is a zoonotic agent.

A

F

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70
Q

Bovine herpesvirus 2 may cause generalised skin lesions

A

T

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71
Q

Bovine herpesvirus 2 is the most frequent primary cause of mastitis in cattle

A

F

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72
Q

Bovine Herpes Mammillitis virus causes milkers’ nodules in humans.

A

F

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73
Q

Bovine Herpes Mammillitis virus may cause lesions on the lips of milking calves.

A

T

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74
Q

Regarding Bovine Herpes Mammillitis, mainly heifers show clinical signs

A

T

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75
Q

Swine inclusion body rhinitis virus is causing mainly subclinical infection.

A

T

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76
Q

Bloody nasal discharge can be a sign of swine inclusion body rhinitis

A

T

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77
Q

Clinical manifestation of swine inclusion body rhinitis is usually seen in piglets less than 3
weeks old

A

T

78
Q

Inclusion body rhinitis is predisposing to fatal respiratory disease in pigs

A

F

79
Q

Suid herpesvirus 2 may cause upper respiratory tract disease in piglets

A

T

80
Q

Swine Inclusion Body Rhinitis is usually seen in piglets

A

T

81
Q

The Swine Inclusion Body Rhinitis virus may cause reproductive problems in sows.

A

T

82
Q

Malignant catarrhal fever is mostly fatal in sheep.

A

F

83
Q

Malignant catarrhal fever is an alphaherpesvirus causing latent infection in ganglia

A

F

84
Q

Malignant catarrhal fever develops only in suckling calves up to two weeks of age.

A

F

85
Q

Malignant catarrhal fever can be seen only in calves younger than one month.

A

F

86
Q

Malignant catarrhal fever causes only mild respiratory disease in sheep

A

F

87
Q

Sheep should be immunised against malignant catarrhal fever virus

A

F

88
Q

Malignant catarrhal fever may develop in swine too

A

T

89
Q

Malignant catarrhal fever is frequently seen in cats

A

F

90
Q

Cattle should be vaccinated against malignant catarrhal fever

A

F

91
Q

Goats are the reservoir hosts of the malignant catarrhal fever virus

A

F

92
Q

The incubation period of malignant catarrhal fever is less than one week

A

F (2 weeks to several months)

93
Q

Malignant catarrhal fever is quickly spreading from cattle to cattle.

A

F

94
Q

Cattle should be vaccinated against malignant catarrhal fever in every six months.

A

F

95
Q

The malignant catarrhal fever is caused by Bovine Herpes virus-2

A

F

Ovine herpesvirus 2
AlHV-1

96
Q

Malignant Catarrhal Fever is usually lethal in cattle.

A

T

97
Q

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

A

F

98
Q

Swine are the reservoir host of the Malignant Catarrhal Fever virus.

A

F

99
Q

The Malignant Catarrhal Fever is caused by Bovine herpesvirus-2

A

F

100
Q

We vaccinate calves 2 times against Malignant Catarrhal Fever

A

F

101
Q

Swine are affected by Malignant Catarrhal Fever

A

T

102
Q

Malignant Catarrhal Fever does not occur in Europe.

A

F

103
Q

Malignant Catarrhal Fever can cause diarrhoea

A

T

104
Q

Malignant Catarrhal Fever spreads slowly within a cattle herd.

A

F

105
Q

Malignant Catarrhal Fever occurs if we keep cattle and sheep together

A

T

106
Q

Malignant Catarrhal Fever does not occur in Hungary

A

F

107
Q

The Aujeszy’s disease virus is stenoxen.

A

F

108
Q

Wild boars are not susceptible to Aujeszy’s disease virus.

A

F

109
Q

Abortion of sows can be a sign of Aujeszys disease

A

T

110
Q

Pregnant sows may abort in Aujeszky’s disease.

A

T

111
Q

In swine the most serious CS of Aujeszky´s disease are usually seen in piglets

A

T?

112
Q

Dogs should be vaccinated against Aujeszys disease

A

F

113
Q

Carnivores are the reservoir hosts of the Aujeszky’s disease virus

A

F

Swine and wild boar

114
Q

The Aujeszys disease in cats is usually a mild respiratory disease with quick recovery

A

F

115
Q

The signs of Aujeszys disease in dogs are similar to rabies

A

T

116
Q

The natural reservoir hosts of the Aujeszys disease virus are rodents

A

F

117
Q

The Aujeszy disease causes fatal pneumonia in Ruminants and Carnivores

A

F

118
Q

The Aujeszy disease is zoonosis

A

F

119
Q

The symptoms of Aujeszys disease in ruminants is similar to rabies

A

T

120
Q

The Aujeszy disease virus may infect several mammalian hosts

A

T

121
Q

Aujeszys diseases can be latently carried by pigs in the nervous system

A

T

122
Q

Central nervous signs of the Aujeszky’s disease are rarely seen in adult swine

A

T

123
Q

Convalescent swine are life-long carriers and potential shedders of Aujeszky’s disease
virus

A

T

124
Q

Swine are immunized against the Aujeszky’s disease virus usually with gE negative marker vaccines

A

T

125
Q

Rats are the reservoir hosts of the Aujeszky’s disease.

A

F

Swine and wild boar

126
Q

The Suid herpesvirus 1 frequently causes encephalitis in humans.

A

F

127
Q

Liquid manure may play a role in the transmission of Suid herpesvirus 1 from swine to
cattle

A

T

128
Q

Discriminative ELISA tests may differentiate between vaccinated swine wild type Suid-
herpesvirus infected ones

A

T

129
Q

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

A

F

130
Q

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

A

T

131
Q

Pigs infected with wild type Aujeszky’s disease virus can be differentiated from
vaccinated ones by serological tests (i.e ELISA).

A

T

132
Q

Cattle should be vaccinated against Malignant Catarrhal Fever.

A

F

133
Q

Aujeszky ś disease can occur in pigs and cats.

A

T

134
Q

Aujeszky ś disease in pigs causes viraemia

A

T

135
Q

Aujeszky ś disease in cats spreads along the nerves.

A

T

136
Q

Aujeszky ś disease can cause respiratory signs in adult pigs.

A

T

137
Q

Aujeszky ś disease causes fever in day old piglets

A

F

In adult

138
Q

Aujeszky`s disease causes pneumonia in susceptible piglets.

A

F

139
Q

Aujeszky`s disease doesn’t cause clinical signs in susceptible piglets

A

F

140
Q

Aujeszky`s disease causes pruritus in susceptible piglets

A

F

141
Q

Aujeszky`s disease causes 20-30% mortality in susceptible piglets.

A

F (100% mortality!)

142
Q

Older pigs are more frequently affected by Aujeszky ś

A

F

143
Q

Conjunctivitis is a frequent sign of duck viral enteritis.

A

T

144
Q

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

A

F

145
Q

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

A

T

146
Q

Liver dystrophy is a frequent lesion of duck viral enteritis (duck plaque)

A

T

147
Q

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

A

T

148
Q

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

A

T

149
Q

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

A

F

150
Q

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

A

T

151
Q

Duck viral enteritis is seldom fatal

A

F

152
Q

Treatment is the most effective control method for duck viral enteritis.

A

F

153
Q

Duck plague is more sever in wild birds than in domestic ducks.

A

F

154
Q

Duck plague virus damages blood vessel endothelium

A

T

155
Q

Duck plague only affects young ducklings

A

F

156
Q

Duck plague is only seen in day old ducklings

A

F

157
Q

Duck viral enteritis is usually mild, osmotic diarrhoea.

A

F

158
Q

Duck plague infects exclusively domestic and wild ducks

A

F

159
Q

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

A

F

160
Q

Duck plague infects exclusively domestic and wild ducks.

A

F

161
Q

Beak deformity is a typical sign of Duck Plague.

A

F

162
Q

Muscovy duck are resistant to the Duck Viral Enteritis.

A

F

163
Q

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

A

F

164
Q

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

A

F

165
Q

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

A

T

166
Q

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

A

F

167
Q

Duck Plague virus can “settle” in wild ducks.

A

T

168
Q

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

A

F

169
Q

Duck Plague only causes hepatitis in young ducks.

A

F

170
Q

Duck Plague only causes disease in ducks and geese

A

F

171
Q

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

A

F

172
Q

Duck Plague also affects geese.

A

T

173
Q

Duck Plague is a disease of young ducks only

A

F

174
Q

Duck Viral Enteritis can affect all age groups.

A

T

175
Q

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

A

T

176
Q

In most cases the Duck Plague disease remain symptomless.

A

F

177
Q

Duck Plague is more severe in wild birds than domestic ducks.

A

F

178
Q

Conjunctivitis is a frequent sign of Duck Plague.

A

T

179
Q

Pigeon herpesvirus mainly causes encephalitis in adult pigeons.

A

F

180
Q

Pigeon herpesvirus infections usually result a haemorrhagic deadly disease.

A

F

181
Q

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

A

T

182
Q

Pigeon herpesvirus kills mostly day old pigeons

A

F

183
Q

Pigeon herpesvirus infection causes feather development problems

A

F

184
Q

Pigeon herpesvirus infections mainly affect young pigeons.

A

T

185
Q

Pigeon herpesvirus mainly causes encephalitis in adult pigeons

A

F

186
Q

Pigeon herpesvirus infection is frequently combined with adenovirus and circovirus
infection.

A

T

187
Q

Pigeon herpesvirus may cause respiratory disease in young pigeons.

A

T

188
Q

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

A

T

189
Q

Pigeon herpesvirus infection is related to Marek’s disease.

A

T

190
Q

Pigeon herpesvirus has the highest mortality in day-old pigeons.

A

F

191
Q

Diarrhoea and nasal discharge are common in Pigeon herpesvirus infections

A

T

EPI PQ (81 decks)

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