Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Epi Mix > Epi Mix AB 5401-5600 > Flashcards

Epi Mix AB 5401-5600 Flashcards

1
Q

Genetic reassortments may cause significant antigenic changes in reovirus strains

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Orbiviruses are serologically uniform

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Orbiviruses are mainly arboviruses

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Reoviruses are sensitive to lipid solvents and detergents

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Orthoreoviruses frequently cause tenosynovitis of horses

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Orthoreoviruses can cause pneumoenteritis in calves

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Orthoreoviruses can cause pneumoenteritis in cattle

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Avian orthoreo –and rotaviruses can cause runting sunting syndrome in chickens

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Avian orthoreoviruses cause mainly nephritis and encephalitis

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Infection of adult birds with orthoreoviruses usually remains subclinical

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Avian orthoreoviruses usually transmitted by germinative route

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Avian orthoreoviruses can cause damages in the bursa Fabricii

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Mammalian orthoreoviruses can cause pneumoenteritis only in suckling animals

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Orthoreovirus can cause tenosynovitis in pigs

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Avian orthoreoviruses usually cause disease in adult birds

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Tenosynovitis is one of the most frequent manifestations of avian orthoreovirus infections

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Trypsin-sensititive avian orthoreovirus usually cause respiratory disease in birds

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Yolk immunity does not influence the efficacy of vaccination against avian orthoreovirus

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Avian orthoreoviruses may cause necrotic foci in the visceral organs of birds

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Avian orthoreoviruses can cause inapparent infection in poultry

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Orthoreoviruses can be detected by haemagglutination test.

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Trypsin resistant strains of Avian orthoreoviruses frequently cause diarrhoea

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Trypsin sensitive strains of avian orthoreoviruses frequently cause tenosynovitis

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Horses usually develop lethal hemorrhagic enteritis in Orthoreovirus infections

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Orthoreoviruses can cause encephalitis in cattle

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Avian orthoreoviruses can cause poult enteritis-mortality syndrome (PEMS).

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Infectious tenosynovitis can be prevented by vaccination

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Avian orthoreoviruses infect only via inhalation and parenterally

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

Avian orthoreoviruses only infect via PO infections

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

All Avian orthoreoviruses can spread germinatively

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Helicopter disease causes feather problems

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

Orthoreovirus infections cause immunosuppression in birds

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Tenosynovitis is a frequent sign of Avian Orthoreovirus infection

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

Orthoreovirus mainly infects younger animals

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

Orthoreovirus causes respiratory and GI disease

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Tenosynovitis is caused by only one Orthoreovirus

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

Rotaviruses are sensitive to environmental conditions

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Rotavirus infection is sporadic within the herd

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

Rotavirus only infects mammals

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

Clinical signs of rotavirus infection are usually seen in animals older than 2 weeks of age

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Swine is not susceptible to rotavirus infection

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Rotaviruses predispose to E.Coli infection in suckling piglets

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Rotaviruses are shed in the faeces in high titres

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
44
Q

Rotavirus infection results in high mortality

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
45
Q

Avian rotaviruses are transmitted by germinative infection

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
46
Q

Losses due to rotavirus infection of young animals can be prevented by colostrum feeding

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
47
Q

Rotaviruses usually cause enteritis in young (1-2 weeks old) animals

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
48
Q

Rotaviruses damage the mucosa of the large intestines

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
49
Q

Rotaviruses are serologically uniform

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
50
Q

Rotaviruses are typically transmitted via the faecal oral route

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
51
Q

Swine rotavirus infection is frequently followed by E. coli secondary infection in piglets

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
52
Q

Avian rotaviruses can cause tenosynovitis

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
53
Q

Rotaviral enteritis of calves can be prevented by immunization of pregnant cows

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
54
Q

Rotaviruses can cause chronic enteritis and persistent infection

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
55
Q

Rotaviruses cause mainly respiratory signs in cattle

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
56
Q

Rotaviruses mainly cause respiratory disease in older animals

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
57
Q

Rotaviruses typically cause respiratory disease in 3-6 month old calves

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
58
Q

Rotavirus is species specific

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
59
Q

Rotaviruses frequently cause tenosynovitis in birds

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
60
Q

Vaccination of horses in the Americas is used to prevent rotavirus infections

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
61
Q

Bluetongue is present only in tropical areas

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
62
Q

Rodents serve as reservoirs of bluetongue

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
63
Q

Ibaraki disease is clinically very similar to bluetongue

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
64
Q

Ibaraki disease virus can be used to immunize cattle against bluetongue

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
65
Q

Lameness is a frequent symptom of bluetongue in sheep

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
66
Q

Bluetongue virus can cause bloody diarrhoea in lambs

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
67
Q

Bluetongue is named after cyanosis of the tongue

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
68
Q

The bluetongue virus is vectored by midges/ gnats

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
69
Q

Cattle can carry the bluetongue virus for years without symptoms

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
70
Q

Wild birds play the most important role in the distribution of bluetongue

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
71
Q

In Europe vaccination of small ruminants against bluetongue is mandatory

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
72
Q

Bluetongue virus is also foetopathic

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
73
Q

Bluetongue virus may cause foetal developmental problems

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
74
Q

Lameness and abortion are signs of bluetongue

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
75
Q

Bluetongue occurs only in Africa and Australia

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
76
Q

Bluetongue is transmitted by ticks

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
77
Q

Bluetongue virus is typically vectored by ticks

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
78
Q

Bluetongue can be transmitted by semen

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
79
Q

Goats are more resistant to the bluetongue than sheep

A

t

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
80
Q

Goats are not susceptible to bluetongue virus

A

f

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
81
Q

Vaccination against Bluetongue results serotype specific immunity

A

t

82
Q

Bluetongue disease occurs only in Africa

A

f

83
Q

Bluetongue virus infects also horses and dogs

A

f

84
Q

Endothelial damages are the most important causes of the clinical signs of bluetongue

A

t

85
Q

A serotype 8 of bluetongue virus strain caused severe outbreak in Europe in 2006-2009

A

t

86
Q

Bluetongue outbreaks mainly occur is summer and autumn

A

t

87
Q

Sheep are less sensitive to Bluetongue than swine

A

f

88
Q

Bluetongue causes transient infection in cattle

A

f

89
Q

Bluetongue vaccines induce serotype-specific immunity

A

t

90
Q

Bluetongue is named after the pseudo-melanosis of the tongue

A

f

91
Q

Bluetongue infects also horses and dogs

A

f

92
Q

Ibaraki disease virus immunizes against bluetongue

A

f

93
Q

Bluetongue disease is present only in tropical and sub-tropical countries

A

f

94
Q

Wild birds are the natural reservoir host of the Bluetongue virus

A

f

95
Q

In utero Bluetongue virus infection may result in immunotolerance

A

t

96
Q

The most severe clinical manifestation of Bluetongue disease is usually seen in goats

A

f

97
Q

Bluetongue is an Orbivirus

A

t

98
Q

Bluetongue primarily spreads with blood sucking insects

A

t

99
Q

Bluetongue replicates in endothelial cells of blood vessels

A

t

100
Q

The causative agent of Bluetongue multiplies in endothelium

A

t

101
Q

Bluetongue has 24 known serotypes

A

f

102
Q

Bluetongue is an enteral disease of turkeys

A

f

103
Q

Bluetongue causes symptoms mostly in sheep and goat

A

f

104
Q

Bluetongue is not present in Europe

A

f

105
Q

Bluetongue causes skin signs in bovine

A

t

106
Q

Bluetongue also infects pigs

A

f

107
Q

Bluetongue infects all hooved animals

A

f

108
Q

No long-term carrier stage is observed in Bluetongue virus infections

A

f

109
Q

Ruminants and swine are the most important hosts of the Bluetongue virus

A

f

110
Q

Lameness is one of the clinical signs of Bluetongue disease in sheep

A

t

111
Q

Serological cross protection exists between 25 known serotypes of Bluetongue virus

A

f

112
Q

Ibarki disease is a Bluetongue-like disease in Asia and in America

A

t

113
Q

The serotype 8 strain of the bluetongue virus, which emerged in Western Europe, does not cause clinical signs in cattle

A

f

114
Q

The epizootic haemorrhagic fever is observed in the USA in wild deer

A

t

115
Q

Epizootic haemorrhagic disease was described only in Australia so far

A

f

116
Q

Epizootic hemorrhage fever is a Bluetongue-like disease of wild ruminants in America

A

t

117
Q

African horse sickness is mostly a peracute disease

A

f

118
Q

African horse sickness virus is endemic in Russia since 2008

A

f

119
Q

he Infectious equine arthritis and the African horse sickness ay have similar clinical signs

A

t

120
Q

Oedemas and haemorrhages are the most frequent lesions in African horse sickness

A

t

121
Q

African horse sickness is spread by ticks

A

f

122
Q

African horse sickness is zoonotic

A

f

123
Q

Frothy nasal discharge is a characteristic sign of African horse sickness

A

t

124
Q

The subacute form of African horses sickness is causing oedema formation and heart failure

A

t

125
Q

Encephalitis is the most frequent sign of African horse sickness

A

f

126
Q

Acute form of African horse sickness occurs mainly in zebras and horses

A

f

127
Q

Carnivores are susceptible to African horse sickness

A

t

128
Q

Occasionally carnivores may get infected with African horse sickness virus

A

t

129
Q

The natural reservoirs of the African horse sickness virus are mainly zebras

A

t

130
Q

Subcutaneous oedema is a frequent symptom of subacute African horse sickness

A

t

131
Q

Zebras are more resistant to African horse sickness than horses

A

t

132
Q

Immunized horses may develop a chronic febrile form of the African horse sickness

A

t

133
Q

Zebras are not susceptible to African horse sickness

A

f

134
Q

Wild birds play the most important role in the spreading of African horse sickness

A

f

135
Q

The chronic form of African horse sickness may be similar to EIA

A

t

136
Q

African horse sickness is a communicable disease

A

t

137
Q

In the pathogenesis of African horse sickness, viraemia lasts longer in horse than in zebras

A

f

138
Q

The African horse sickness is endemic in Europe and in the USA

A

f

139
Q

The signs of chronic African Horse Sickness and Equine Infectious anaemia may be similar

A

t

140
Q

African horse sickness was transported to Europe by migratory birds

A

f

141
Q

African horse sickness can cause encephalitis

A

f

142
Q

African horse sickness is a notifiable (communicable) disease in Europe

A

t

143
Q

African horse sickness can cause lung oedema

A

t

144
Q

African horse sickness is prevented in Africa by combined vaccines

A

t

145
Q

African Horse Sickness is a frequent disease, distributed worldwide

A

f

146
Q

Respiratory signs are the most frequent symptoms in acute African Horse Sickness

A

t

147
Q

The differential diagnosis of African Horse Sickness and Tetanus is rather complicated

A

f

148
Q

African Horse Sickness is spread primarily by “small mosquitos”.

A

f

149
Q

Carriers for African Horse Sickness are zebras and donkeys

A

t

150
Q

African Horse Sickness is not present in Europe today

A

t

151
Q

African Horse Sickness is caused by an arbovirus

A

t

152
Q

African Horse Sickness is caused by Orbivirus

A

t

153
Q

The most characteristic post mortem lesion in African Horse Sickness is haemorrhages and oedema.

A

t

154
Q

Reservoir for African Horse Sickness is zebras and donkeys

A

f

155
Q

African Horse Sickness is presented mainly per-acutely in donkeys

A

f

156
Q

African Horse Sickness virus only infect horses

A

f

157
Q

Horses are more susceptible than zebra in African Horse Sickness

A

t

158
Q

Haemorrhagic meningoencephalitis is the most frequent sign of the African Horse Sickness

A

f

159
Q

The African Horse Sickness virus may infect dogs too

A

t

160
Q

African horse sickness is a world-wide distributed and frequent disease

A

f

161
Q

The subacute form of the African horse sickness is mainly characterized by oedematisation and cardiac dysfunctions

A

t

162
Q

Horse encephalosis is endemic in Africa

A

t

163
Q

Equine encephalosis can result in abortion

A

t

164
Q

Equine encephalosis is transmitted by mosquitoes

A

t

165
Q

Equine encephalosis causes the most severe clinical signs in Zebras

A

f

166
Q

Horse encephalosis occurs only in America

A

f

167
Q

Equine encephalosis causes high mortality

A

f

168
Q

Attenuated and inactivated vaccines are available against equine encephalosis

A

f

169
Q

Horse encephalosis appeared several times in Europe between 2006 and 2009

A

f

170
Q

Midges are the main vectors of the Equine encephalosis virus

A

t

171
Q

Bursitis virus targets the premature B lymphocytes

A

t

172
Q

The bursitis virus causes per os infection

A

t

173
Q

Meat type hybrids are more sensitive to Gumboro disease than layers

A

f

174
Q

Clinical signs of Gumboro disease can be seen in chickens older than 8 weeks

A

f

175
Q

Some Gumboro disease vaccines can be applied only besides yolk immunity

A

t

176
Q

Watery diarrhoea is typical clinical sign of Gumboro disease

A

t

177
Q

There are several virulence variants of bursitis virus

A

t

178
Q

linical signs of Gumboro disease can be seen in chickens younger than 8 weeks

A

t

179
Q

Bursitis virus is highly contagious

A

t

180
Q

Immunocomplex vaccines can be applied to prevent Gumboro disease

A

t

181
Q

Clinical signs of Gumboro disease can be seen in chickens younger than 8 days

A

f

182
Q

Before vaccination against Gumboro disease the level of maternal immunity in the flock should be determined

A

t

183
Q

Anaemia and cyanosis can be clinical signs of Gumboro disease

A

t

184
Q

Bursitis virus causes the highest mortality in day old chicks

A

f

185
Q

Vaccines are available to control Gumboro disease

A

t

186
Q

In the prevention of Gumboro disease in ovo vaccinations can be applied

A

t

187
Q

The bursitis virus is very sensitive to the environmental conditions

A

f

188
Q

Bursitis virus causes disease only in chicken

A

f

189
Q

The bursitis virus can retain its infectivity for 1-4 months in the litter

A

t

190
Q

Both serotypes of bursitis virus are pathogenic

A

f

191
Q

Bursitis virus infection can reduce the efficacy of vaccinations

A

t

192
Q

Bursitis virus infection results in immunosuppression

A

t

193
Q

Bursitis virus is shed in the faeces

A

t

194
Q

In Europe only low virulence strains of infectious bursitis virus can be found

A

f

195
Q

Infectious bursitis is a very contagious disease

A

t

196
Q

Pigeons are the most susceptible to IBDV

A

f

197
Q

Early IBDV infection damages the humoral immunity

A

t

198
Q

The bursitis virus mostly causes germinative infection

A

f

199
Q

IBDV type 2 is used for immunization of chicken against infectious bursal disease

A

f

200
Q

Ibdv is a zoonotic virus

A

f

Epi Mix (35 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions