MT 2 Re-Retake. Flashcards
1
Q
The bluetongue virus is vectored by midges/ gnats.
A
T.
2
Q
Bluetongue occurs only in Africa + Australia.
A
F.
3
Q
Goats are more resistant to the blurtongue than sheep.
A
T.
4
Q
In Europe vaccination of small Ru against blutongue is mandatory.
A
F.
5
Q
The Infectious Eq arterittis + the AHorseS may have similar CS.
A
T.
6
Q
AHorseS is spread by ticks.
A
F.
7
Q
Acute form of AHorseS occurs mainly in zebras + Horses.
A
F.
8
Q
SC oedema is a frequent symptom of subacute AHorseS.
A
T.
9
Q
Rotaviruses are shed in the faeces in high titres.
A
T.
10
Q
Rotaviruses predispose to E.coli infection in suckling piglets.
A
T.
11
Q
Orthoreoviruses can cause tenosynovitis in Sus.
A
F.
12
Q
Mammalian orthoreoviruses can caise penumoenteritis only in suckling animals.
A
F.
13
Q
The main vectors of the tick- borne encephalitis virus are sylvatic mammalian sp.
A
F.
14
Q
The louping ill was introduced to Australia to control rabbit population.
A
F.
15
Q
Cytopathic + non- cytopathic biotypes of the BoVDV are known.
A
T.
16
Q
The BoVDV typically damages endothelial-, epithelial- + lymphatic tissues.
A
T.
17
Q
Bo neonatal pancytopenia ( BNP) is caused by BoVDV vaccine.
A
F.
18
Q
Persistently infected cattle can maintain BoVDV in a farm.
A
T.
19
Q
Bloody diarrhea is a CS of the mucosal disease.
A
T.
20
Q
The border disease virus frequently causes encephalitis in ewes.
A
F.
21
Q
CSFV can be transmitted by raw pork products.
A
T.
22
Q
CSF can cause transplacental infection.
A
T.
23
Q
CSF infection results in thrombocytopenia.
A
T.
24
Q
In acute CSF, at the beginning obstipation, later diarrhea can be observed.
A
T.
25
CSF infection during the 1st 1/2 of pregnancy can lead to abortion.
T.
26
During necropsy of acute CSF cases, haemorrhages can be seen in the gastric mucosa.
T.
27
In uncomplicated cases of subacute CSF the normal size spleen can be observed.
T.
28
Wild boars play the main role in the maintenance of CSFV in endemic areas.
T.
29
All bunyaviruses are vectored by ticks.
F.
30
Akabane virus is zoonotic.
F.
31
Hantaviruses cause haemorrhagic fever in human.
T.
32
Nairobi sheep disease leads to abortion in the infected pregnant animals.
T.
33
The serotypes of influenza viruses is determined by their HA + NA proteins.
T.
34
Influenzaviruses are sensitive to drying out.
T.
35
The virulency of avian influenza is determined by the IV pathogeny index + mortality.
T.
36
The LPAI causes immunosuppression.
T.
37
Antigenic shift means the reassortment of the influenza virus genome segments.
T.
38
In Sus all influenza variants can be detected.
F.
39
Influenza causes persistent infection in Eq.
F.
40
In human inactivated vaccines are used for the immunisation against influenza.
T.
41
The ASFV can be inactivated by 2% NaOH within 1 day.
T.
42
The immune system cannot neutralize ASFV by Ab.
T.
43
The ASFV infects the Sus by air.
F.
44
The ASFV replicates the bone marrow.
T.
45
Several virulence variants of ASFV exist.
T.
46
In acute ASF cases the leading pathological finding is the black + enlarged ln.
T.
47
Stamping out of the infected herds is applied in the control of ASF.
T.
48
ASFV is shed in the urine of the infected animals.
F.
49
The FMDV is very sensitive to acidic pH.
T.
50
The FMDV can retain it's infectivity in frozen milk for mnths.
T.
51
FMDV is serologically uniform.
F.
52
Cattle shed FMDV for a shorter time comparing to Sus.
F.
53
Dogs are susceptible to FMD.
T.
54
The 1º replication site of FMD is the bone marrow.
F.
55
FMD can be carried for a long time in the hoof tissue.
T.
56
For lab tests FMD samples should be submitted frozen.
F.
57
Talfan disease occurs in any age groups.
F.
58
Haemorrhages are typical PM lesions of Talfan disease.
F.
59
Paralysis is a CS of Talfan disease.
T.
60
There is widespread vaccination in Europe for prevention of Talfan disease.
F.
61
There is germinative spread in the case of avian encephalomyelitis.
T.
62
Typical CS of avian encephalitis occur up to 5 -6 wks of age.
T.
63
Tremor is a typical CS of avian encephalomyelitis.
T.
64
Haemorrhages are frequent PM lesions of avian encephalomyelitis.
F.
65
Avian nephritis is more frequent in H2Ofowl than in chicken.
F.
66
Avian nephritis is caused by astrovirus.
T.
67
CS of avian nephritis can be seen in the 1st 4 wks of life.
T.
68
Ureate deposition is a PM lesion of avian nephritis.
T.
69
VES causes mortality in piglets.
T.
70
Fel calcivirus can cause persisting infecteion in the tonsils.
T.
71
RHDV propagates in the liver of the infected animals.
T.
72
The Orthohepevirus A can be zoonotic.
T.
73
Both serotypes of Bursitis virus are pathogenic.
F.
74
The bursitis virus mostly causes germinative infection.
F.
75
CS of Gumboro disease can be seen in chickens younger than 8 days.
F.
76
Bursitis virus infection can reduce the efficacy of vaccinations.
T.
77
Togaviruses cause airborne infection.
F.
78
Rodents serve as reservoirs for Venezuelan Eq encephalomyelitis virus.
F.
79
Eq encephalomyelitis viruses can cause lameness in Eq.
T.
80
Eq encephalomyelitis can cause abortion in human.
T.
81
Reoviruses are sensitive to lipid solvents + detergents.
F.
82
Orbiviruses are mainly arboviruses.
T.
83
Bluetongue virus infects also Eq + dogs.
F.
84
Bluetongue virus is also foetopathic.
T.
85
Vaccination against bluetongue results serotype specific immunity.
T.
86
Bluetongue outbreaks mainly occur in summer + autumn.
T.
87
AHorseSickness is zoonotic.
F.
88
Zebras are ø susceptible to AHorseSV.
F.
89
Eq encephalosis is endemic in Africa.
T.
90
Rotaviruses infect only mammals.
F.
91
Rotaviruses are typically transmittes via fecal- oral route.
T.
92
Avian orthoreoviruses can cause inapparent infection in poultry.
T.
93
The louping ill is seen in cattle in Great Britain + Scandinavia.
F.
94
Serological cross reactions frequently occur between related flaviviruses.
T.
95
The TIck- borne encephalitis virus can be transmitted via consumption of raw milk.
T.
96
Pestviruses are zoonotic.
F.
97
In utero infection with non- cythopathic BoVDV can cause immunotolerance.
T.
98
Mucosal disease can develop in cattle persistently infected with BoVDV.
T.
99
Bo neonatal pancytopenia ( BNP) is an immunopathy observed in immunotolerant, BoVDV infected calves.
F.
100
The border disease virus causes pneumonia in sheep.
T.
101
CSFV can retain it's infectivity for 6 mnths in frozen meat.
T.
102
CSF causes oronasal infection.
T.
103
CSF infection results in immunosuppression.
T.
104
In acute CSF skin haemorrhages + bloody nasal discharge can be observed.
T.
105
CSF infection during 1st 1/2 of pregnancy results in the birth of immunotolerant piglets.
T.
106
During necropsy enlarged bloody ln can be seen in CSF cases.
T.
107
The boutons in the intestines are characteristic lesions in subacute CSF.
T.
108
In vaccinated herds we mostly see the CSF CS in 6- 12 wks old piglets.
T.
109
All bunyaviruses are vectored by insects.
F.
110
Akabance virus cause foetal damages in dogs.
F.
111
Hantaviruses cause renal failure in human.
T.
112
Nairobi sheep disease causes haemorrhagic enteritis in the infected animals.
T.
113
Influenza viruses are classififed into genera by their HA + NA proteins.
F.
114
The M2 protein of influenza viruses serves as an ion channel important in the decapsidation.
T.
115
The high virulence of some influenza A viruses is the result of mutations in the HA gene.
T.
116
The NA protein has a role in the influenza virus release from the infected cells.
T.
117
Antigenic drift means serials of pt mutations in the HA + NA genes.
T.
118
In birds all influenza variants can be detected.
T.
119
The mortality of Sus influenza is high.
F.
120
In poultry farms LPAI may be endemic without CS.
T.
121
The ASFV can be inactivated by irradiation.
T.
122
The ASF causes haemadsorption in cell cultures.
T.
123
The ASF infects Sus /os.
T.
124
The ASFV replicates in ly.
F.
125
In ASF cases abortion is never observed.
F.
126
In acute ASF cases the leading pathological finding are the haemorrhages.
T.
127
Vaccines are available to be used in the control of ASF.
F.
128
ASF is shed in the saliva of the infected animals.
T.
129
The FMDV is very sensitive to the environmental cond.
F.
130
The FMDV can retain it's infectivity in dried milk for mnths.
T.
131
All serotypes of FMD can be detected worldwide.
F.
132
Sus shed FMDV for a shorter time comparing to cattle.
T.
133
Hedge is susceptibel to FMD.
T.
134
The 1º replication site of FMD is the tongeu mucosa.
F.
135
After immune response the FMD vesicles can recover fully.
T.
136
For lab tests FMD samples should be submitted in buffered transport medium.
T.
137
Talfan disease is a disease of Sus.
T.
138
The CS of Talfan disease are more severe than that of Teschen disease.
F.
139
Talfan disease can be seen in animals < 4 mnth of age.
T.
140
Flaccid paralysis is a typical CS of Talfan disease.
T.
141
Sus are infected with SVDV /os.
T.
142
SVDV can cause vesicles on the snout of Sus.
T.
143
Haemorrhages can be seen PM in the case of SVD.
F.
144
The mortality of SVD is very high, it can be 50- 60%.
F.
145
Duck hepatitis A virus is shed in faeces.
T.
146
The resistance of duck hepatitis A virus is high.
T.
147
Germinative infection can happen in the case of duck hepatitis.
F.
148
CS of duck hepatitis can be seen in all age grps.
F.
149
The 1º source of VES infection is sea- O feed.
T.
150
Fel calcivirus infection can cause the limping of kittens.
T.
151
RHD virus can be propagated in cell culture.
F.
152
The Orthohepevirus A causes clinical symptoms only in human.
T.
153
The bursitis virus is very sensitive to the environmental cond.
F.
154
The bursitis virus causes /os infection.
T.
155
CS of Gumboro disease can be seen in chickens > 8 wks.
F.
156
Bursitis virus infection results in immunosuppression.
T.
157
Togaviruses are transmitted by mosquitoes.
T.
158
Birds serve as reservoir for Venezuelan horse encephalomyelitis virus.
F.
159
Eq encephalomyelitis viruses can cause asymptomatic infections.
T.
160
Eq encephalomyelitis viruses are zoonotic.
T.
161
Orthoreoviruses frequently cause tenosynovitis of Eq.
F.
162
Lameness + abortions are signs of bluetongue.
T.
163
Rodents are the main reservoirs of Bluetongue virus.
F.
164
Goats are ø susceptible to bluetongue virus.
F.
165
The natural reservoirs of AHorseSV are mainly zebras.
T.
166
Encephalitis is the most frequent sign of the AHorseS.
F.
167
Oedemas + haemorrhages are the most frequent lesions in AHorseS.
F.
168
Eq encephalomyelitis vaccines defence against AHorseS ( cross protection).
F.
169
Rotaviruses usually cause enteritis in young ( 1- 2 wks old) animals.
F.
170
Rotaviruses infect only mammalians.
F.
171
Eq usually develop lethal haemorrhagic enteritis in orthoreovirus infections.
F.
172
Infection of adult birds with orthoreoviruses usually remains subclinical.
T.
173
Louping ill is seen in cattle in N. America.
F.
174
Eq + humans do ø play a significant role in the transmission of WNV.
T.
175
The BoVDC can infect also Sus.
T.
176
Non- cytopathic strains of BoVDV can cause immunosuppresion.
T.
177
Non- cytopathic strains of BoVDV can't cause transplacental infection.
F.
178
Sus infected with BoVDV turn sero+ve to CSF.
T.
179
Persistently infected cattle can maintain BoVDV in a farm.
T.
180
Hedgehogs are sensitive to CSF.
F.
181
CSFV targets the bone marrow stem cells.
T.
182
CSF can be transmitted by mating.
T.
183
Among CSF CS weekness of the hindlegs + ataxia can be observed.
T.
184
CSF infection in the 2nd 1/2 of the pregnancy leads to the birth of immunotolerant piglets.
F.
185
Haemorrhagic enteritis is a characteristis pathological lesion of CSF.
T.
186
In subacute CSF we can obserbe ischaemic infarcts at the edges of the spleen.
T.
187
The cSFV shedding starts 1 wk after the infection.
F.
188
Bunyaviruses cause oral infection.
F.
189
Schmallenberg virus causes foetal damages in human.
F.
190
Wild rabbits are reservoirs of Rift Valley fever virus.
F.
191
Nairobi sheep disease causes haemorrhagic enteritis in the infected animals.
T.
192
Influenza viruses have segmented genome.
T.
193
HPAI + LPAI strains differ in the number of basal AA in the HA protein.
T.
194
Anti- neuraminidase drugs inhibit the penetration of influenza viruses into the cells.
F.
195
The host range of influenza virus is determeined by the NA protein.
F.
196
Antigenic drift is behind the seasonal influenza epidemies.
T.
197
Bats have an important role in the epidemiology of influenza.
F.
198
Breeding mare should be vaccinated before the influenza season.
F.
199
Influenza causes high morbidity but low mortality in Sus.
T.
200
The ASFV is sensitive to the environmental cond.
F.
201
The ASFV agglutinates RBC of guinea pigs.
F.
202
The tick sp vectoring ASF are present in Portugal + Spain.
T.
203
The 1º replication site of ASFV is the oronasal mucosa.
F.
204
The ASFV is serologically uniform but several genotypes exist.
T.
205
The subacute ASF infection is caused by mild virulent virus strains.
F.
206
In acute ASF cases we can observe high mortality in sows.
T.
207
In the diagnostics of ASF animal experiment are frequently used.
F.
208
9 hrs after infection FMDV can be shed by the infected animals.
T.
209
In humid + cool environment, the FMDV can retain it's infectivity for wks.
T.
210
The FMDV is classified into 7 genotypes.
F.
211
The main host ( reservoir) of FMDV is Sus.
F.
212
FMD is transmitted by insect vectors.
F.
213
Eq are susceptibel to FMD.
F.
214
There are ø neutralising Ab produced against FMDV.
F.
215
The 1º replication sites of fMD are the ln.
F.
216
Teschen disease occurs in cattle, sheep + Sus.
F.
217
Teschovirus is resistant, it remains infective in teh faeces for a few wks.
T.
218
Asymptomatic animals can carry TEschovirus.
T.
219
Paralysis is a CS of Teschen disease.
T.
220
Duck hepatitis A virus is shed in the faeces.
T.
221
Duck hepatitis A virus can be transmitted by the germinative way.
F.
222
CS caused by duck hepatitis A virus can be seen int he 1st mnth of life.
T.
223
Live + inactivated vaccines are available against duck hepatitis.
T.
224
Only chicken are susceptible to avain nephritis virus.
T.
225
The mortality of avain nephritis if 50 - 60 %.
F.
226
Avian nephritis virus replicates in the gut.
T.
227
BRoilers are regularly vaccianted against avian nephritis virus.
F.
228
The VESV can survive in H2O for 2 wks.
T.
229
The Fel calicivirus is shed in excretes.
T.
230
RHDV is used for biological control for rural rabbits.
T.
231
The avian hepatitis E causes drop in egg production.
T.
232
The bursitis virus can retain it's infectivity for 1- 4 mnths in the litter.
T.
233
Bursitis virus is highly contagious.
T.
234
Bursitis virus targets the premature T ly.
F.
235
H2Ory diarrhea is a typical CS of Gumboro disease.
T.
236
Togaviruses are strongly resistant to the environmental cond.
F.
237
Birds serve as reservoirs for the EEE virus.
T.
238
Togavirus infection in Eq results in hepatitis.
F.
239
The clinical appearance of Togavirus infection is dose dependent.
T.
