PRRS Coronaviridae Flashcards
(291 cards)
1
Q
PRRS is caused by an arterivirus
A
T
2
Q
PRRS is caused by a coronavirus
A
F
3
Q
The clinical signs of PRRS can be abortion like that of SMEDI
A
T
4
Q
Isolation of PRRS in cell culture can be easily performed in any laboratory
A
F— replication in vitro is hard beacuse : Green monke african kidney cells-vero cells cotton rat …
5
Q
PRRS has only highly pathogenic variants
A
F
6
Q
Respiratory signs of PRRS occur just in sows
A
F
7
Q
PRRS virus replicates in macrophages
A
T
8
Q
PRRS virus replicates in T-lymphocytes
A
F
9
Q
The pathological signs of PRRS is typical because the lymph nodes are never enlarged
A
F
10
Q
PRRS virus affects the respiratory system in young piglets
A
T
11
Q
PRRS cause digestive sign in adult
A
F
12
Q
PRRS has 2 phases
A
T
13
Q
Target cells of PRRSV are alveolar epithelial cells
A
F
14
Q
PRRS can only be isolated in porcine kidney cells
A
F
15
Q
PRRS causes immune suppression in prolonged cases
A
F
16
Q
Attenuated and inactivated vaccines are available against PRRS
A
T
17
Q
PRRS virus causes severe intestinal problems in adult pigs
A
F
18
Q
PRRS is characterized by respiratory disease in adult pigs
A
F
19
Q
PRRSV attacks the active macrophages
A
T
20
Q
For PRRS prevention we can get a very good immunization with inactivated vaccines
A
F
21
Q
PRRS: reproductive and respiratory problems and others with other virulence
A
T
22
Q
Maternal immunity protects only short time against PRRS
A
T
23
Q
Porcine reproductive and respiratory virus (PRRSV) can cause abortion only in the advanced stage of pregnancy (over 90 days
A
F
24
Q
Only inactivated vaccines can be used for the prevention against PRRSV
A
F
25
Porcine reproductive and respiratory virus (PRRSV) propagates in lymphatic cells
T
26
PRRSV infection may influence the reproductive performance of boars
T
27
Porcine reproductive and respiratory virus (PRRSV) is a zoonotic agent
F
28
Porcine parvoviruses and PRRSV may cause similar disease in sows
T
29
Porcine reproductive and respiratory vines (PRRSV) does not cause clinical signs in boars
F
30
Inactivated vaccines alone cannot induce protective immunity against PRRSV
T
31
Boars can transmit porcine reproductive and respiratory syndrome virus in the semen
T
32
Porcine reproductive and respiratory syndrome virus cannot cause abortion, only infertility of the sows.
F
33
There are no vaccines for the prevention of Porcine reproductive and respiratory syndrome
F
34
The blue ear disease is caused by dog coronavirus
F---PRRS=Blue ear disaes
35
The blue ear disease is caused by FIP
F
36
The blue ear disease is caused by chicken coronavirus
F
37
The blue ear disease is caused by PRRS
T
38
Does PRRS virus have 3 genotypes
F
39
Oedema can be a sign of PRRS
T
40
PRRS is deadly in adult animals
F
41
The Porcine reproductive and respiratory syndrome (PRRS) is only present in North- America
F
42
The PRRS virus may cause reproductive problems in boars
T
43
PRRS: cyanosis is one clinical symptom
T
44
Human coronavirus was not known before 2020
F
45
Recombination between coronaviruses is frequent
T
46
Recombination between coronaviruses is rare
F
47
Coronaviruses are of two origin: bird or bat
T
48
Human coronaviruses usually cause death
F
49
Coronaviruses are enveloped viruses
T
50
BCoV can cause haemagglutination
T
51
IBV can cause haemagglutination
F
52
PDCoV can cause haemagglutination
F
53
CCoV can cause haemagglutination
F
54
TGEV can cause haemagglutination
F
55
FIPV can cause haemagglutination
F
56
HeCoV can cause haemagglutination
T
57
PEDV can cause haemagglutination
F
58
Coronaviruses can survive for months in the environment
F
59
Coronaviruses frequently mutate and recombine
T
60
Coronaviruses have a weak physical resistance
T
61
Typical sign of TGE is vomiting and diarrhoea
T
62
TGE virus does not reach the mammary gland
F
63
TGE virus can replicate in the lungs
T
64
The colostral immunity against TGE protects the piglets from the disease
T
65
The antibodies against porcine respiratory coronavirus protect the pigs against TGE
T
66
TGE virus does not reach foetuses
T
67
TGE virus does not cause haemagglutination in vitro
T
68
TGE virus can cause haemagglutination in vitro
F
69
TGE can cause 100% mortality in newborn piglets
T
70
TGE virus causes respiratory signs in piglets
F
71
The pathology of TGE is not characteristic
T
72
TGE virus does not cause dehydration
F
73
The pathognomonic sign of TGE is necrosis in the large intestine
F
74
TGE virus can replicate in the intestine
T
75
Porcine transmissible gastroenteritis (TGE) is completely eradicated in Europe
F
76
TGE causes 100% mortality in sows
F
77
The incubation time of TGE is usually 5-7 days
F
78
TGE virus infects the digestive and the respiratory systems
T
79
TGEV is widespread and fully replaced porcine epidemic diarrhoea (PED) virus
F
80
Porcine respiratory coronavirus induces cross-protection against PED
F
81
Today TGE occurs in an enzootic form
T
82
The characteristic symptoms of TGE are vomiting and diarrhoea
T
83
TGE infects only swine
F
84
TGE virus causes high morbidity
T
85
Transmissible gastroenteritis is the more severe in piglets than in adult swine
T
86
The mortality caused by transmissible gastroenteritis of swine is the highest among old sows
F
87
Transmissible gastroenteritis of swine is a widespread disease, causing high losses in Europe
F
88
The lesions of transmissible gastroenteritis of swine are in the gastric mucosa and in the small intestine
T
89
Transmissible gastroenteritis of pigs is more frequent in the tropical countries that the moderate climate
F
90
There is no cross protection between transmissible gastroenteritis vines and the pulmonary coronavirus of pigs
F---there is also same vaccine
91
Transmissible gastroenteritis virus can cause clinical disease only in pigs
T
92
Transmissible gastroenteritis virus spreads rapidly in the herd
T
93
The epizootic TGEV spreads rapidly
T
94
The epizootic TGEV can cause disease mainly in winter
T
95
The epizootic TGEV can be transmitted with milk
T
96
The epizootic TGEV does not cause viraemia
F
97
Transmissible gastroenteritis virus provides cross protection to hemagglutinating coronavirus
F
98
TGE mainly cause croupous pneumonia
F
99
TGE replaces the respiratory corona virus
F
100
TGE appears in Hungary
T
101
TGE causes 100% mortality in susceptible piglets under 1 week of age
T
102
Porcine transmissible gastroenteritis is completely eradicated in Europe
F
103
PED is similar to TGE
T
104
The incubation time of TGE is usually 1-3 days
T
105
TGE virus infects the digestive and the respiratory system
T
106
Only pigs are susceptible to TGE infection
F
107
Maternal immunity is essential against TGE infection of piglets
T
108
Today TGE occurs in epizootic form
T---in winter
109
TGE is completely eradicated in Europe
F
110
Transmissible gastroenteritis is usually asymptomatic in adults
T
111
Transmissible gastroenteritis virus can cause clinical signs in dogs
F
112
The Porcine respiratory coronavirus has been evolved from the Transmissible gastroenteritis virus
T
113
Porcine respiratory coronavirus induces cross-protection from transmissible gastroenteritis
T
114
TGE infection is devastating at any age
F
115
The incubation period of TGE can be as short as 8 hours
F
116
Pig has betacoronavirus
T
117
Pigs has only alphacoronavirus
F
118
The porcine coronavirus may be avian virus
T
119
The antibodies against porcine respiratory coronavirus protect the pigs against porcine epidemic diarrhoea virus
F
120
Mutations and recombinations do not occur in swine coronaviruses
F
121
PRCoV usually causes pneumonia
F
122
Porcine respiratory coronavirus reduced the prevalence of porcine epidemic diarrhoea
F
123
Porcine respiratory coronavirus induces cross protection from TGE
T
124
Swine pulmonary corona virus has a high mortality by pneumonia
F
125
Porcine respiratory coronavirus is a modification of the Hemagglutinating encephalomyelitis virus
F
126
PRCoV gives cross protection against TGEV
T
127
PDCoV causes symptoms in pigs
T
128
Porcine respiratory coronavirus causes acute pneumonia in susceptible piglets
F
129
Porcine epidemic diarrhea can cause clinical signs in older animals
T
130
The virus causing porcine epidemic diarrhea can replicate in the colon
T
131
PEDV also occurs in Europe
T
132
The porcine epidemic diarrhoea virus causes disease in calf
F
133
Porcine epidemic diarrhoea virus can cause disease in humans
F
134
The virus causing porcine epidemic diarrhoea can replicate in the heart muscle of the foetus
F
135
Porcine epidemic diarrhoea virus causes more severe symptoms in adult than in young piglets
F
136
Porcine epidemic diarrhoea is present only in Africa and in the Middle East
F
137
Porcine epidemic diarrhoea usually resembles TGE
T
138
Porcine epidemic diarrhoea can be transmitted by infected dogs and cats
F
139
Porcine epidemic diarrhoea frequently occurs in Europe
F
140
PHEV gets to central nervous system via the peripheral nerves
T
141
PHEV causes diarrhoea
F
142
Hemagglutination encephalomyelitis virus infects young pigs
T
143
Hemagglutinating encephalomyelitis virus is typically vectored by mosquitoes
F
144
Hemagglutinating coronavirus can cause encephalomyelitis in suckling piglets
T
145
Hemagglutinating coronavirus can cause severe diarrhoea in sows
F
146
Hemagglutinating coronavirus/Ontario Disease is sporadic in Hungary
T
147
Hemagglutinating coronavirus of pigs is frequently causing malabsorption in sows
F
148
The hemagglutinating encephalomyelitis virus multiplicate in hematopoietic stem cells of the bone marrow
F
149
Hemagglutinating coronavirus is present worldwide
T
150
The occurrence of coronavirus encephalomyelitis of piglets is usually sporadic
T
151
Deltacoronavirus of pigs is a bat virus
F--bird
152
Deltacoronavirus of pigs is an avian virus
T
153
Bovine coronavirus is generally spreading in summer
F
154
The bovine coronavirus is of avian origin
F
155
Bovine coronavirus is betacoronavirus
T
156
Bovine coronavirus is alphacoronavirus
F
157
Bovine coronavirus does not cause haemagglutination in vitro
F
158
Bovine coronavirus remains at the place of the primary replication, and it does not cause viraemia
F
159
Bovine coronavirus is generally spreading in winter
T
160
Certain bovine coronaviruses can cause diarrhoea in children
F
161
Bovine coronaviruses usually infect the respiratory and the digestive systems
T
162
Bovine corona virus causes diarrhoea in adult animals mainly in summer
F
163
Bovine corona virus can cause respiratory problems
T
164
Cattle can be infected with coronavirus per os
T
165
Cattle can be infected with coronavirus by inhalation
T
166
Bovine coronavirus can infect humans
F
167
Bovine coronaviruses causes mainly respiratory and enteric diseases
T
168
Certain bovine coronaviruses can affect humans causing clinical signs
F
169
Calves can be protected against coronavirus diarrhoea by vaccinations of pregnant cows
T
170
Mortality of calf enteral coronavirus is high
T
171
Bovine coronaviruses can cause diarrhoea only in calves up to one month of age
F
172
Coronavirus diarrhoea occurs in young calves between a few days and 3-4 weeks of age
T
173
Coronavirus dysentery in calves can be observed up to 3 weeks of age
T
174
Coronavirus can cause enteritis in calves typically on the first week of life
T
175
Calf coronavirus diarrhoea is characterized by several respiratory signs
F
176
Mortality of calf respiratory coronavirus is high
F
177
Bovine coronaviruses may cause respiratory signs in calves
T
178
Winter diarrhoea mainly affects dairy herds
T
179
Bovine coronavirus can cause diarrhoea in adult animals
T
180
Coronaviruses cause winter diarrhoea in dairy cows with haemorrhagic access
T
181
There are no vaccines for the prevention of coronaviral diarrhoea in cattle
F
182
Winter dysentery causes symptoms in younger age (up to 6 months of age).
F
183
Coronaviruses cause winter diarrhoea in dairy cows
T
184
Surviving winter dysentery gives permanent protection only against homologous infection
T
185
Dogs have only one type of coronavirus
F
186
The canine coronavirus is a zoonotic agent
F
187
Canine coronavirus can always cause enteral disease
F
188
There is a vaccine against canine coronavirus
T
189
Canine coronavirus (CCOV-1) causes diarrhoea in young, susceptible dogs
T
190
Canine coronaviruses frequently cause encephalitis and hepatitis in puppies
F
191
Canine alphacoronavirus type II may cause haemorrhagic disease in 1-2-month-old pup
T
192
Canine coronavirus are only present in North America
F
193
Canine coronavirus vaccines effectively protect from any Canine coronavirus infection
F
194
CCoV-IIa infections are endemic worldwide
F
195
Canine enteral coronavirus and porcine coronavirus are genetically closely relative
F
196
Dog enteral coronavirus: some strains can cause haemorrhagic diseases in some visceral organs
T
197
Canine coronavirus-2 infections are characterized by haemorrhagic diarrhoea in puppies
T
198
There are no protective vaccines available against Canine enteric coronavirus
F
199
Canine pantropic coronavirus is an agent of kennel cough
F
200
Canine pantropic coronavirus causes subnormal temperature
F
201
Canine pantropic coronaviruses damage only the mucous membranes
F
202
Canine pantropic coronaviruses causes high fever
T
203
Pantropic canine coronavirus infections are endemic worldwide
F
204
Pantropic canine coronavirus causes a mild respiratory disease in suckling dogs
F
205
The canine respiratory coronavirus belongs to a different group than enteral coronavirus
T
206
Canine respiratory coronavirus and human coronaviruses are genetically very distant relatives in all cases
F
207
Canine respiratory coronavirus and bovine coronaviruses are genetically closely relatives
T
208
Canine respiratory coronavirus infection results cross-protection against CCOV-I
F
209
In suckling dogs CCoV-II infection causes respiratory disease.
F
210
Canine coronavirus is part of kennel cough
T
211
The FIP is a pathotype of feline coronavirus
T
212
Almost all cat vaccines contain antibodies against FIP
F
213
The wet form of FIP is II. type of hypersensitivity
F
214
The dry form of FIP is IV. type of hypersensitivity
T
215
FIP is an incurable disease
T
216
FIP is caused by jackal coronavirus
F
217
FIP responds well to antibiotic treatment
F
218
Most animals infected with feline coronavirus develop FIP
F
219
Cats can be vaccinated against feline coronavirus, but protection against FIP is not effective
T
220
The dry form of FIP is I. type of hypersensitivity
F
221
The feline coronavirus causes viraemia only in FIP
F
222
The feline coronavirus is usually an enteric disease
T
223
The feline coronavirus is a zoonotic agent
F
224
Feline enteric coronaviruses may infect dogs
F
225
Feline infectious peritonitis viruses form a single serotype
T
226
Feline enteric coronavirus infection usually causes sudden death of queens
F
227
In the background of FIP can be immunopathological processes
T
228
FIP causes infection only in cats younger than 1 year of age
F
229
Feline corona virus does not have a long infection/carrier time
F
230
Feline infectious peritonitis (FIP) develops only in adult cats (over 1 year of age).
F
231
Decreased serum albumin/globulin ratio may indicate FIP
T
232
Feline enteric coronavirus usually causes severe, haemorrhagic enteritis in kittens
F
233
Cell-mediated hypersensitivity plays a major role in the background of non-effusive feline infectious peritonitis
T
234
All species of Felidae are susceptible to feline coronaviruses
T
235
Coronaviruses can cause asymptomatic infection in cats
T
236
Feline coronaviruses can cause mild watery diarrhoea
T
237
Feline infectious peritonitis is an acute disease, it appears after a 2-3 days long incubation
F
238
Feline coronavirus is a recombinant canine virus
T
239
Feline enteric coronavirus causes FIP in 5-10% of cases
T
240
FIP mainly infects with faeces
T
241
Feline enteric coronavirus (FECoV) can only infect Felidae
T
242
Effusive FIP is the result of a type 3 hypersensitivity reaction
T
243
Feline enteric coronavirus infection of cats is very common
T
244
Vaccine effectively protects from feline infectious peritonitis
F
245
Feline coronavirus has two serotypes, both having two pathotypes
T
246
FECoV infection usually causes acute haemorrhagic enteritis
F
247
The Feline enteric coronavirus usually does not cause severe enteritis
T
248
FIP forms because of immunotolerance
F
249
In the presence of high-titer antibody level, infectious peritonitis cannot develop in cats
F
250
Inactivated vaccine against IBV can be used any ages.
F
251
Avian coronaviruses provide long lasting yolk-immunity
F
252
A clinical sign of IBV can be nephritis
T
253
IBV has nephropathogenic strains
T
254
Infectious bronchitis virus causes tracheitis and pneumonia in chicken below 6 weeks of age
T
255
The eggs are not infected infectious bronchitis virus
T
256
IBV, the most important route is the germinative route
F
257
IBV, have a wide range of serotypes including many variant strains
T
258
IBV, cause stunting growth when embryonated egg is infected
F
259
IBV is an arterivirus.
F
260
Mortality of IBV is high every ages
F
261
Mortality of IBV depends on the coinfections
T
262
IBV causes swollen oviducts in chicken
T
263
Mortality of IBV depends on the age
T
264
IBV can cause soft-shelled egg
T
265
IBV cannot cause viraemia
F
266
The Infectious Bursitis Virus IBDV is inactivated within 1-2 days in the environment
F
267
Infectious bronchitis viruses belong into 3 distinct serotypes
F
268
Infectious bronchitis virus damages the ovaries only in hens
F
269
Infectious bronchitis virus can cause renal problems
T
270
Infectious bronchitis virus can cause inflammatory lesions in the oviduct of chicken
T
271
Infections bronchitis virus vaccines are used against turkey enteritis
F
272
Infectious bronchitis virus can cause severe respiratory signs in young chicken
T
273
Infectious bronchitis virus can damage the oviduct
T
274
Infectious bronchitis can spread very slowly in the flock causing chronic disease
F
275
There are no vaccines for the prevention of infectious bronchitis of chicken
F
276
Infectious bronchitis virus of chicken is a uniform virus without any types of variants
F
277
There is no germinative infection in the case of infectious bronchitis of chicken
T
278
Infectious bronchitis virus replicates in the epithelial cells of the trachea and bronchi
T
279
Infectious bronchitis virus can result in damaged or abnormal shell formation
T
280
Infectious bronchitis has a lot of serotypes
T
281
Infectious bronchitis viruses may have different organ tropism
T
282
Germinative route is the most important in the transmission of infectious bronchitis
F
283
Inactivated vaccines can be used against infectious bronchitis
T
284
Attenuated vaccines can be used against infectious bronchitis
T
285
Infectious bronchitis viruses form 2 distinct serotypes
F
286
Infectious bronchitis viruses have a wide range of serotypes including many variants
T
287
The clinical signs of Infectious bronchitis and Newcastle disease may be similar
T
288
Coronavirus can cause diarrhoea in turkeys
T
289
Turkey corona virus does not cause strong diarrhoea and causes no necrosis
F
290
Turkey enteritis is characterized by age-dependent mortality rates
T
291
Vaccination of turkey breeding flocks against Turkey enteritis virus is mandatory
F
