Midterm 2 (2019) Flashcards
(160 cards)
1
Q
The African Swine Fever Virus can be inactivated by irradiation
A
True
2
Q
The ASF causes haemadsorption in cell cultures
A
True
3
Q
The ASF infects the swine per os
A
True
4
Q
The ASF replicates in lymphocytes
A
False
5
Q
In ASF cases, abortion is never observed
A
False
6
Q
In acute ASF cases, the leading pathological finding are the haemorrhages
A
True
7
Q
Vaccines are available to be used in the control of ASF
A
False
8
Q
ASF is shed in the saliva of the infected animals
A
True
9
Q
The FMD virus is very sensitive to the environmental conditions
A
False
10
Q
The FMD virus can retain its infectivity in dried milk for months
A
True
11
Q
All serotypes of FMD can be detected world-wide
A
False
12
Q
Swine shed FMD virus for a shorter time comparing to cattle
A
True
13
Q
Hedgehog is susceptible to FMD
A
True
14
Q
The primary replication site for FMD is the tongue mucosa
A
False
15
Q
After immune response, the FMD vesicles can recover fully
A
True
16
Q
For laboratory tests, FMD samples should be submitted in buffered transport medium
A
True
17
Q
Talfan Disease is a disease of pigs
A
True
18
Q
The clinical signs of Talfan Disease are more severe than that of Teschen Disease
A
False
19
Q
Talfan Disease can be seen in animals below 4 months of age
A
True
20
Q
Flaccid paralysis is a typical clinical sign of Talfan Disease
A
True
21
Q
Pigs are infected with Swine Vesicular Disease Virus per os
A
True
22
Q
Swine Vesicular Disease Virus can cause vesicles on the snout of pigs
A
True
23
Q
Haemorrhages can be seen post mortem in the case of Swine Vesicular Disease
A
False
24
Q
The mortality of Swine Vesicular Disease is very high, it can be 50-60%
A
False
25
Duck Hepatitis A virus is shed in the faeces
True
26
The resistance of Duck Hepatitis A is high
True
27
Germinative infection can happen in the case of Duck Hepatitis A
False
28
Clinical signs of the Duck Hepatitis A can be seen in all age groups
False
29
The primary source of VES infection is sea-origin feed
True
30
Feline Calicivirus infection can cause the limping of kittens
True
31
RHD virus can be propagated in cell culture
False
32
The Orthohepevirus A causes clinical symptoms only in human
True
33
The Bursitis Virus is very sensitive to the environmental conditions
False
34
The Bursitis Virus causes per os infection
True
35
Clinical signs of Gumboro Disease can be seen in chickens older than 8 weeks
False
36
Bursitis Virus infection results in immunosuppression
True
37
Togavirus are transmitted by mosquitoes
True
38
Birds serve as reservoirs for Venezuelan Horse Encephalomyelitis Virus
False
39
Equine Encephalomyelitis Viruses can cause asymptomatic infections
True
40
Equine Encephalomyelitis Viruses are zoonotic
True
41
Reoviruses are sensitive to lipid solvents and detergents
False
42
Orbiviruses are mainly arboviruses
True
43
Bluetongue virus infects also horses and dogs
False
44
Bluetongue virus is also foetopathic
True
45
Vaccination against Bluetongue results serotype specific immunity
True
46
Bluetongue outbreaks mainly occur is summer and autumn
True
47
African Horse Sickness is zoonotic
False
48
Zebras are not susceptible to African Horse Sickness
False
49
Horse Encephalosis is endemic in Africa
True
50
Rotavirus infects only mammals
False
51
Rotaviruses are typically transmitted via the faecal-oral route
True
52
Avian Orthoreoviruses can cause inapparent infection in poultry
True
53
The Louping ill Disease is seen in cattle in Great Britain and Scandinavia
False
54
Serological cross reactions frequently occur between related Flavivirus
True
55
The Tick-borne Encephalitis Virus can be transmitted via consumption of raw milk
True
56
Pestivirus are zoonotic
False
57
In utero infection with non-cytopathic BVDV can cause immunotolerance
True
58
Mucosal Disease can develop in cattle persistently infected with BVDV
True
59
Bovine Neonatal Pancytopenia (BNP) is an immunopathy observed in immunotolerant, BVDV-infected calves
False
60
The Border Disease Virus causes pneumonia in sheep
True
61
Classical Swine Fever can retain its infectivity for 6 months in frozen meat
True
62
CSF causes oronasal infection
True
63
CSF infection results in immunosuppression
True
64
In acute CSF, skin haemorrhages and bloody nasal discharge can be observed
True
65
CSF infection during the first half of pregnancy results in the birth of immunotolerant piglets
True
66
During necropsy enlarged bloody lymph nodes can be seen in CSF cases
True
67
The boutons in the intestines are characteristic lesions in subacute CSF
True
68
In vaccinated herds we mostly see the CSF clinical signs in 6-12 weeks old piglets
True
69
All Bunyviruses are vectored by insects
False
70
Akabane virus causes foetal damages in dogs
False
71
Hantaviruses cause renal failure in human
True
72
Nairobi Sheep Disease causes haemorrhagic enteritis in the infected animals
True
73
Influenza viruses are classified into genera by their HA and NA proteins
False
74
The M2 protein of Influenza Viruses serves as an ion channel important in the decapsidation
True
75
The high virulence of some Influenza A viruses is the result of mutations in the HA gene
True
76
The NA protein has a role in the Influenza Virus release from the infected cells
True
77
Antigenic drift means serials of point mutations in the HA and NA genes
True
78
In birds, all influenza variants can be detected
True
79
The mortality of swine influenza is high
False
80
In poultry farms, LPAI maybe be endemic without clinical signs
True
81
The African Swine Fever Virus can be inactivated by 2%NaOh within 1 day
True
82
The immune system cannot neutralise the ASF virus by antibodies
True
83
The ASF virus infects the swine by air
False
84
The ASF virus replicates the bone marrow
True
85
Several virulence variants of ASF virus exist
True
86
In acute ASF cases, the leading pathological finding is the black and enlarged lymph nodes
True
87
Stamping out of the infected herds is applied in the control of ASF
True
88
ASF virus is shed in the urine of the infected animals
False
89
The FMD virus is very sensitive to acidic pH
True
90
The FMD virus can retain its infectivity in frozen milk for months
True
91
FMD virus is serologically uniform
False
92
Cattle shed FMD virus for a shorter time comparing to swine
False
93
Dogs are susceptible to FMD
True
94
The primary replication site of FMD is the bone marrow
False
95
FMD can be carried for long time in the hoof tissue
True
96
For laboratory tests FMD samples should be submitted frozen
False
97
Talfan Disease occurs in any age group
False
98
Haemorrhages are typical post mortem lesions of Talfan Disease
False
99
Paralysis is a clinical sign of Talfan Disease
True
100
There is widespread vaccination in Europe for prevention of Talfan Disease
False
101
There is germinative spread in the case of Avian Encephalomyelitis
True
102
Typical clinical signs of Avian Encephalomyelitis occur up to 5-6 weeks of age
True
103
Tremor is a typical clinical sign of Avian Encephalomyelitis
True
104
Haemorrhages are frequent post mortem lesions of Avian Encephalomyelitis
False
105
Avian Nephritis is more frequent in waterfowl than in chicken
False
106
Avian Nephritis is caused by astrovirus
True
107
Clinical signs of Avian Nephritis can be seen in the first four weeks of life
True
108
Ureate deposition is a post mortem of Avian Nephritis
True
109
VES causes mortality in piglets
True
110
Feline Calicivirus can cause persisting infection in the tonsils
True
111
RHD virus propagates in the liver of the infected animals
True
112
The Orthohepevirus A can be zoonotic
True
113
Both serotypes of Bursitis Virus are pathogenic
False
114
The Bursitis Virus mostly causes germinative infection
False
115
Clinical signs of Gumboro disease can be seen in chickens younger than 8 days
False
116
Bursitis Virus infection can reduce the efficacy of vaccinations
True
117
Togaviruses cause airborne infection
False
118
Rodents serve as reservoirs for Venezuelan Horse Encephalomyelitis Virus
False
119
Equine Encephalomyelitis Viruses can cause lameness in horses
True
120
Equine Encephalomyelitis can cause abortion in human
False
121
The Bluetongue virus is vectored by midges/gnats
True
122
Bluetongue occurs only in Africa and Australia
False
123
Goats are more resistant to the Bluetongue than sheep
True
124
In Europe vaccination of small ruminants against Bluetongue is mandatory
False
125
The Infectious Equine Arteritis and the African Horse Sickness may have similar clinical signs
True
126
African Horse Sickness is spread by ticks
False
127
Acute form of African Horse Sickness occurs mainly is zebra and horse
False
128
Subcutaneous oedema is a frequent symptom of subacute African Horse Sickness
True
129
Rotavirus are shed in the faeces in high titres
True
130
Rotavirus predispose to E. coli infection in sucking piglets
True
131
Orthoreovirus can cause tenosynovitis in pigs
False
132
Mammalian Orthoreoviruses can cause pneumoenteritis only in sucking animals
False
133
The main vectors of the Tick-borne Encephalitis Virus are sylvatic mammalian species
False
134
The Louping ill was introduced to Australia to control rabbit population
False
135
Cytopathic and non-cytopathic biotypes of the Bovine Viral Diarrhoea are known
True
136
The BVD virus typically damages endothelial-, epithelial- and lymphatic tissues
True
137
Bovine Neonatal Pancytopenia (BNP) is caused by a Bovine Viral Diarrhoea virus
False
138
Persistently infected cattle can maintain BVDC in a farm
True
139
Bloody diarrhea is a clinical sign of the Mucosal Disease
True
140
The Border Disease Virus frequently causes encephalitis in ewes
False
141
Classical Swine Fever Virus can be transmitted by raw pork products
True
142
CSF can cause transplacental infections
True
143
CSF infections result in thrombocytopenia
True
144
In acute CSF, at the beginning there is obstipation
True
145
CSF infection during the first of half of pregnancy can lead to abortion
True
146
During necropsy of acute CSF cases, haemorrhages can be seen in gastric mucosa
True
147
In uncomplicated cases of subacute CSF the normal size spleen can be observed
True
148
Wild boars play the main role in the maintenance of CSF virus in endemic areas
True
149
All Bunyaviruses are vectored by ticks
False
150
Akabane Virus is zoonotic
False
151
Hantaviruses causes haemorrhagic fever in humans
True
152
Nairobi Sheep Disease leads to abortion in the infected pregnant animals
True
153
The serotype of influenza viruses is determined by their HA and NA proteins
True
154
Influenzaviruses are sensitive to drying out
True
155
The virulence of Avian Influenza is determined by the i.v pathogeny index and mortality
True
156
The LPAI causes immunosuppression
True
157
Antigenic shift means the reassortment of the influenzavirus' genome segments
True
158
In swine, all influenza variants can be detected
False
159
Influenza causes persistent infection in horses
False
160
In humans, inactivated vaccines are used for the immunisation against influenza
True
