Reoviridae Flashcards
(191 cards)
1
Q
Orbiviruses spread by droplet (aerosol) infection
A
F
2
Q
Orbiviruses can be cultivated in vivo by inoculation of embryonated eggs
A
T
3
Q
Genetic reassortments may cause significant antigenic changes in reovirus strains
A
T
4
Q
Orbiviruses are serologically uniform
A
F
5
Q
Orbiviruses are mainly arboviruses
A
T
6
Q
Reoviruses are sensitive to lipid solvents and detergents
A
F
7
Q
Orthoreoviruses can cause pneumoenteritis in calves
A
T
8
Q
Orthoreoviruses can cause pneumoenteritis in cattle
A
T
9
Q
Avian orthoreo –and rotaviruses can cause runting sunting syndrome in chickens
A
T
10
Q
Avian orthoreoviruses cause mainly nephritis and encephalitis
A
F
11
Q
Avian orthoreoviruses usually transmitted by germinative route
A
T
12
Q
Avian orthoreoviruses can cause damages in the bursa Fabricii
A
T
13
Q
Mammalian orthoreoviruses can cause pneumoenteritis only in suckling animals
A
F
14
Q
Orthoreovirus can cause tenosynovitis in pigs
A
F
15
Q
Avian orthoreoviruses usually cause disease in adult birds
A
F
16
Q
Tenosynovitis is one of the most frequent manifestations of avian orthoreovirus infections
A
T
17
Q
Trypsin-sensititive avian orthoreovirus usually cause respiratory disease in birds
A
T
18
Q
Yolk immunity does not influence the efficacy of vaccination against avian orthoreovirus
A
F
19
Q
Avian orthoreoviruses may cause necrotic foci in the visceral organs of birds
A
T
20
Q
Avian orthoreoviruses can cause inapparent infection in poultry
A
T
21
Q
Orthoreoviruses can be detected by haemagglutination test.
A
T
22
Q
Trypsin resistant strains of Avian orthoreoviruses frequently cause diarrhoea
A
T
23
Q
Trypsin sensitive strains of avian orthoreoviruses frequently cause tenosynovitis
A
T
24
Q
Horses usually develop lethal hemorrhagic enteritis in Orthoreovirus infections
A
F
25
Infection of adult birds with Orthoreoviruses usually remains subclinical
T
26
Orthoreoviruses can cause encephalitis in cattle
F
27
Avian orthoreoviruses can cause poult enteritis-mortality syndrome (PEMS).
T
28
Infectious tenosynovitis can be prevented by vaccination
T
29
Avian orthoreoviruses infect only via inhalation and parenterally
F
30
Avian orthoreoviruses only infect via PO infections
F
31
All Avian orthoreoviruses can spread germinatively
T
32
Helicopter disease causes feather problems
T
33
Orthoreovirus infections cause immunosuppression in birds
T
34
Tenosynovitis is a frequent sign of Avian Orthoreovirus infection
T
35
Orthoreovirus mainly infects younger animals
T
36
Orthoreovirus causes respiratory and GI disease
T
37
Tenosynovitis is caused by only one Orthoreovirus
F
38
Orthoreoviruses frequently cause tenosynovitis of horses
F
39
Rotaviruses are sensitive to environmental conditions
F
40
Rotavirus infection is sporadic within the herd
F
41
Rotavirus only infects mammals
F
42
Clinical signs of rotavirus infection are usually seen in animals older than 2 weeks of age
F
43
Swine is not susceptible to rotavirus infection
F
44
Rotaviruses predispose to E.Coli infection in suckling piglets
T
45
Rotaviruses are shed in the faeces in high titres
T
46
Rotavirus infection results in high mortality
F
47
Avian rotaviruses are transmitted by germinative infection
F
48
Losses due to rotavirus infection of young animals can be prevented by colostrum feeding
T
49
Rotaviruses usually cause enteritis in young (1-2 weeks old) animals
T
50
Rotaviruses damage the mucosa of the large intestines
F
51
Rotaviruses are serologically uniform
F
52
Rotaviruses are typically transmitted via the faecal oral route
T
53
Swine rotavirus infection is frequently followed by E. coli secondary infection in piglets
T
54
Avian rotaviruses can cause tenosynovitis
F
55
Rotaviral enteritis of calves can be prevented by immunization of pregnant cows
T
56
Rotaviruses can cause chronic enteritis and persistent infection
F
57
Rotaviruses cause mainly respiratory signs in cattle
F
58
Rotaviruses mainly cause respiratory disease in older animals
F
59
Rotaviruses typically cause respiratory disease in 3-6 month old calves
F
60
Rotavirus is species specific
F
61
Rotaviruses frequently cause tenosynovitis in birds
F
62
Vaccination of horses in the Americas is used to prevent rotavirus infections
T
63
Bluetongue is present only in tropical areas
F
64
Rodents serve as reservoirs of bluetongue
F
65
Ibaraki disease is clinically very similar to bluetongue
T
66
Ibaraki disease virus can be used to immunize cattle against bluetongue
F
67
Lameness is a frequent symptom of bluetongue in sheep
T
68
Bluetongue virus can cause bloody diarrhoea in lambs
T
69
Bluetongue is named after cyanosis of the tongue
T
70
The bluetongue virus is vectored by midges/ gnats
T
71
Cattle can carry the bluetongue virus for years without symptoms
T
72
Wild birds play the most important role in the distribution of bluetongue
F
73
In Europe vaccination of small ruminants against bluetongue is mandatory
F
74
Bluetongue virus is also foetopathic
T
75
Bluetongue virus may cause foetal developmental problems
T
76
Lameness and abortion are signs of bluetongue
T
77
Bluetongue occurs only in Africa and Australia
F
78
Bluetongue is transmitted by ticks
F
79
Bluetongue virus is typically vectored by ticks
F
80
Bluetongue can be transmitted by semen
T
81
Goats are more resistant to the bluetongue than sheep
T
82
Goats are not susceptible to bluetongue virus
F
83
Vaccination against Bluetongue results serotype specific immunity
T
84
Bluetongue disease occurs only in Africa
F
85
Bluetongue virus infects also horses and dogs
F
86
Endothelial damages are the most important causes of the clinical signs of bluetongue
T
87
A serotype 8 of bluetongue virus strain caused severe outbreak in Europe in 2006-2009
T
88
Bluetongue outbreaks mainly occur is summer and autumn
T
89
Sheep are less sensitive to Bluetongue than swine
F
90
Bluetongue causes transient infection in cattle
F
91
Bluetongue vaccines induce serotype-specific immunity
T
92
Bluetongue is named after the pseudo-melanosis of the tongue
F
93
Bluetongue infects also horses and dogs
F
94
Ibaraki disease virus immunizes against bluetongue
F
95
Bluetongue disease is present only in tropical and sub-tropical countries
F
96
Wild birds are the natural reservoir host of the Bluetongue virus
F
97
In utero Bluetongue virus infection may result in immunotolerance
T
98
The most severe clinical manifestation of Bluetongue disease is usually seen in goats
F
99
Bluetongue is an Orbivirus
T
100
Bluetongue primarily spreads with blood sucking insects
T
101
Bluetongue replicates in endothelial cells of blood vessels
T
102
The causative agent of Bluetongue multiplies in endothelium
T
103
Bluetongue has 24 known serotypes
F
104
Bluetongue is an enteral disease of turkeys
F
105
Bluetongue causes symptoms mostly in sheep and goat
F
106
Bluetongue is not present in Europe
F
107
Bluetongue causes skin signs in bovine
T
108
Bluetongue also infects pigs
F
109
Bluetongue infects all hooved animals
F
110
No long-term carrier stage is observed in Bluetongue virus infections
F
111
Ruminants and swine are the most important hosts of the Bluetongue virus
F
112
Lameness is one of the clinical signs of Bluetongue disease in sheep
T
113
Serological cross protection exists between 25 known serotypes of Bluetongue virus
F
114
Ibarki disease is a Bluetongue-like disease in Asia and in America
T
115
The serotype 8 strain of the bluetongue virus, which emerged in Western Europe, does not cause clinical signs in cattle
F
116
The epizootic haemorrhagic fever is observed in the USA in wild deer
T
117
Epizootic haemorrhagic disease was described only in Australia so far
F
118
Epizootic hemorrhage fever is a Bluetongue-like disease of wild ruminants in America
T
119
African horse sickness is mostly a peracute disease
F
120
African horse sickness virus is endemic in Russia since 2008
F
121
he Infectious equine arthritis and the African horse sickness ay have similar clinical signs
T
122
Oedemas and haemorrhages are the most frequent lesions in African horse sickness
T
123
African horse sickness is spread by ticks
F
124
African horse sickness is zoonotic
F
125
Frothy nasal discharge is a characteristic sign of African horse sickness
T
126
The subacute form of African horses sickness is causing oedema formation and heart failure
T
127
Encephalitis is the most frequent sign of African horse sickness
F
128
Acute form of African horse sickness occurs mainly in zebras and horses
F
129
Carnivores are susceptible to African horse sickness
T
130
Occasionally carnivores may get infected with African horse sickness virus
T
131
Subcutaneous oedema is a frequent symptom of subacute African horse sickness
T
132
Zebras are more resistant to African horse sickness than horses
T
133
Immunized horses may develop a chronic febrile form of the African horse sickness
T
134
Zebras are not susceptible to African horse sickness
F
135
Wild birds play the most important role in the spreading of African horse sickness
F
136
The chronic form of African horse sickness may be similar to EIA
T
137
African horse sickness is a communicable disease
T
138
In the pathogenesis of African horse sickness, viraemia lasts longer in horse than in zebras
F
139
The African horse sickness is endemic in Europe and in the USA
F
140
The signs of chronic African Horse Sickness and Equine Infectious anaemia may be similar
T
141
The natural reservoirs of the African Horse Sickness virus are mainly zebras
T
142
African horse sickness was transported to Europe by migratory birds
F
143
African horse sickness can cause encephalitis
F
144
African horse sickness is a notifiable (communicable) disease in Europe
T
145
African horse sickness can cause lung oedema
T
146
African horse sickness is prevented in Africa by combined vaccines
T
147
African Horse Sickness is a frequent disease, distributed worldwide
F
148
Respiratory signs are the most frequent symptoms in acute African Horse Sickness
T
149
The differential diagnosis of African Horse Sickness and Tetanus is rather complicated
F
150
African Horse Sickness is spread primarily by “small mosquitos”.
F
151
Carriers for African Horse Sickness are zebras and donkeys
T
152
African Horse Sickness is not present in Europe today
T
153
African Horse Sickness is caused by an arbovirus
T
154
African Horse Sickness is caused by Orbivirus
T
155
The most characteristic post mortem lesion in African Horse Sickness is haemorrhages and oedema.
T
156
Reservoir for African Horse Sickness is zebras and donkeys
F
157
African Horse Sickness is presented mainly per-acutely in donkeys
F
158
African Horse Sickness virus only infect horses
F
159
Horses are more susceptible than zebra in African Horse Sickness
T
160
Haemorrhagic meningoencephalitis is the most frequent sign of the African Horse Sickness
F
161
The African Horse Sickness virus may infect dogs too
T
162
African horse sickness is a world-wide distributed and frequent disease
F
163
The subacute form of the African horse sickness is mainly characterized by oedematisation and cardiac dysfunctions
T
164
Horse encephalosis is endemic in Africa
T
165
Equine encephalosis can result in abortion
T
166
Equine encephalosis is transmitted by mosquitoes
T
167
Equine encephalosis causes the most severe clinical signs in Zebras
F
168
Horse encephalosis occurs only in America
F
169
Equine encephalosis causes high mortality
F
170
Attenuated and inactivated vaccines are available against equine encephalosis
F
171
Horse encephalosis appeared several times in Europe between 2006 and 2009
F
172
Midges are the main vectors of the Equine encephalosis virus
T
173
Bursitis virus targets the premature B lymphocytes
T
174
The orthohepevirus A causes clinical symptoms only in human
T
175
The Orthohepevirus A can be zoonotic
T
176
The avian hepatitis E is a zoonotic disease
F
177
The avian hepatitis E causes drop in egg production
T
178
Hepatitis E virus causes characteristic clinical symptoms in swine
F
179
Avian nephritis is caused by astroviruses
T
180
The mortality of avian nephritis is 50-60%
T
181
Avian nephritis replicates in the gut
T
182
Broilers are regularly vaccinated against avian nephritis virus
F
183
Urate deposition is a postmortem lesion of avian nephritis
T
184
Clinical signs of avian nephritis can be seen in the first four weeks of life
T
185
Avian nephritis virus usually causes diseases in chickens of 1-3 weeks of age
T
186
Avian nephritis is more frequent in waterfowl than in chicken
F
187
Avian nephritis virus caused by a picornavirus
F
188
Only chickens are susceptible to avian nephritis virus
T
189
Avian nephritis virus is transmitted by rodents
F
190
Chickens are frequently seropositive for avian nephritis
T
191
Attenuated vaccines are used for the prevention of chicken from avian nephritis virus
F
