Midterm 3 Flashcards
1
Q
Influenza viruses are sensitive to detergents
A
True
2
Q
Certain antiviral drugs can inhibit the influenza A virus neuraminidase activity
A
True
3
Q
At least 16 different serotypes of Influenza A haemagglutinin are known so far
A
True
4
Q
The AG structure of influenza viruses is very stable
A
False
5
Q
Racing horses must be yearly vaccinated against equine influenza
A
True
6
Q
In dogs mainly H3N8 strains cause influenza
A
True
7
Q
Waterfowl are more sensitive to avian influenza than chicken and turkey
A
False
8
Q
Highly pathogenic avian influenza strains may cause encephalitis in birds
A
True
9
Q
The PPR is endemic in North and south america
A
False
10
Q
The canine distemper virus can infect only dogs
A
False
11
Q
The outcome of canine distemper virus infection is very much determined by the immune response of the dog
A
True
12
Q
In utero canine distemper virus may result in abortion
A
True
13
Q
The virulence of ND strains can be determined by sequence analysis of virus genes
A
True
14
Q
ND virus cannot survive long in the environment
A
False
15
Q
ND is typically vectored by ticks
A
False
16
Q
Only inactivated vaccines can be used against ND virus
A
False
17
Q
Parainfluenza 2 virus is frequent in the etiology of kennel cough
A
True
18
Q
The natural hosts of hendravirus are flying foxes
A
True
19
Q
Hendravirus can cause encephalitis in horses and humans
A
True
20
Q
Avian metapneumovirus can cause respiratory signs and egg production problems
A
True
21
Q
Porcine respiratory coronavirus infection usually provides cross-protection from transmissible gastroenteritis virus infections
A
True
22
Q
Transmissible gastroenteritis virus can infect only swine
A
False
23
Q
Bovine coronavirus may cause respiratory signs in calves
A
True
24
Q
Canine alphacoronavirus type 2 may cause hemorrhagic disease in 1-2 month old pups
A
True
25
Feline enteric coronavirus usually causes severe, hemorrhagic enteritis in kittens
False
26
Cell-mediated hypersensitivity plays a major role in the background on non-effusive feline infectious peritonitis
True
27
Infectious bronchitis virus can cause inflammatory lesions in the oviduct of chicken
True
28
Infectious bronchitis virus vaccines are used against turkey enteritis
False
29
Pregnant mares usually abort in the acute phase of viral arteritis
True
30
Equine viral arteritis is diagnosed by agarose-gel immunodiffusion (coggins)
False
31
Porcine reproductive and respiratory virus (PRRSV) propagates in lymphatic cells
True
32
PRRSV infection may influence the reproductive performance of boars
True
33
In the case of vesicular stomatitis vesicles are formed only at the place of entry of the virus
True
34
Salivation is a CX of vesicular stomatitis
True
35
Vesicular stomatitis cannot be prevented with vaccines
False
36
Vesicular stomatitis is a zoonosis
True
37
The rabies virus is a uniform virus without serotypes, genotypes, subtypes
False
38
Only carnivorous animals are susceptible to the rabies virus
false
39
High amount of rabies virus is shed in the saliva
True
40
Sylvatic rabies is maintained by foxes in europe
True
41
Bovine enzootic leukosis virus can be transmitted with lymphoid cells
True
42
Iatrogenic infection is frequent in the epidemiology of bovine enzootic leukosis
True
43
The target cells of the bovine enzootic leukosis virus are T lymphocytes
False
44
The typical signs of bovine enzootic leukosis can be seen in cattle under 1 year
false
45
All avian leukosis viruses are oncogenic
True
46
Avian leukosis viruses are shed in the feces
True
47
There is no germinative infection in the case of avian leukosis virus
False
48
The target cells of the avian leukosis are B lymphocytes
True
49
Borna disease is widespread all over the world
True
50
Only horses are susceptible to borna disease virus
False
51
Pneumonia is the main CS of borna disease
False
52
Most animals showing CS of borna disease die due to it
True
53
Infective prions are resistant to proteases
True
54
Only a few animals show CS of BSE in an infected herd
True
55
BSE prions are shed in the feces and it is transmitted to other cattle in the herd
false
56
The incubation time of BSE is 3-5 years
True
57
Anthrax cannot occur in dogs and cats
False
58
Bacillus anthracis generally infects animals per os
True
59
Anthrax is an acute or peracute disease in cattle
True
60
Anthrax cannot be prevented with vaccination
False
61
Blackleg is caused by clostridium septicums
False
62
In the case of sheep, blackleg is generally a consequence of wound infection
True
63
Edema in the muscles is a typical CS of blackleg
True
64
Attenuated vaccines are used for the prevention of blackleg
False
65
Tetanus occurs only in horses
False
66
The tetanus toxin cleaves the synaptobrevin
True
67
The CS of tetanus are inducible
True
68
Tetanus cannot be prevented with vaccine
False
69
Extracellular enzymes are important factors of pathogenic staphylococci
True
70
Morels disease is mainly seen in suckling lambs
false
71
Diarrhea is the mian CS of morels disease
false
72
Isolation of the agent from lesions of morels disease confirms the diagnosis
true
73
Listeriosis can only be seen in sheep
false
74
Abortion is the most frequent form of listeriosis in sheep
false?
75
Aerogenic infection is the most important form of infection with listeria in sheep
false
76
Listeriosis is spreading fast from one animal to the other
false
77
Caseous lymphadenitis is caused by nitrate positive strains of corynebacterium pseudotuberculosis
T, positive strains in horse, negative in ruminant
78
Caseous lymphadenitis is only seen in suckling lambs
F
79
Arthritis can be a CS of caseous lymphadenitis
t
80
Vaccination can be used for the prevention of caseous lymphadenitis
t
81
The natural hosts of influenza A virus are humans
f
82
Certain antiviral drugs can inhibit the M2 ion channels of the influenza A virus
t
83
the amino acid sequence of the protease cleavage site of the influenza A virus haemagglutinin may influence the virulence
t
84
At least 9 different serotypes of influenza A virus neuraminidase are know so far
t
85
In horses predominantly H3N8 influenza A strains can cause disease
t
86
It is forbidden to use AB for TX of influenza in horses
f
87
Swine-adapted influenza A viruses cannot cause disease in humans
f
88
The vaccination of poultry against avian influenza is mandatory
f
89
Bovine parainfluenza virus 3 is frequent endemic in cattle farms
t
90
It is mandatory to vaccinate cattle against rinderpest
f
91
Erosive lesions in the oral cavity are frequent signs of PPR
t
92
Nowadays rinderpest virus is used as heterologous vaccine against PPR virus
f
93
Dogs infected with distemper virus usually become life-long carriers and shedders
f
94
Clinical manifestation of distemper is mainly seen in 3-4 months of age
t
95
Canine parainfluenzavirus 2 frequently causes encephalitis in old dogs
f
96
Feline morbillivirus infection may be associated with tubule-interstitial nephritis in cats
t
97
Wild birds may be reservoir hosts of influenza viruses
t
98
Wild birds may be reservoir hosts of newcastle disease virus
t
99
Wild birds may be reservoir hosts of avian metapneumovirus
t
100
Wild birds may be reservoir hosts of nipah viruses
f
101
TGE is more severe in piglets than adults
t
102
PRCoV is a modification of the haemagglutinating encephalomyelitis virus
f
103
Porcine epidemic diarrhea is present only in africa and the middle east
f
104
Haemagglutinating encephalomyelitis virus is typically vectored by mosquitoes
f
105
Bovine Co viruses can cause diarrhea only in calves up to one month of age
f
106
Canine Co viruses frequently cause encephalitis and hepatitis in puppies
f
107
FIP develops only in adult cats
f
108
Decreased serum Alb/Glb ratio may indicate FIP
t
109
Mares are frequently lifelong carriers of equine arteritis virus
f
110
SC edema is a freq CS of EVA
t
111
PRRSV can cause abortion only in the advanced stage of pregnancy
f
112
Only inactivated vaccine can be used for the prevention against PRRSV
f
113
Rhabdovirus are very resistant and they can survive in the environment for several weeks
f
114
VS occurs in america
t
115
The host range of VS and FMD is the same
t
116
Sand flies and midges can transmit VS virus
t
117
Urban forms of rabies is maintained by dogs and cats
t
118
Rabies virus is spreading in the infected animals perineural
t
119
Rabies virus is shed in the saliva before SX appear
t
120
The incubation of rabies is generally less than 1 week,
f
121
Retroviruses show high host specificity
t
122
Retrovirus are generally not carried for more than a month
f
123
Malignant transformation is a frequent consequence of retrovirus infection
t
124
Retroviruses generally cannot survive in the environment for a long time
t
125
infection of poultry herds with avian leukosis is widespread
t
126
Cs of avian leukosis generally appear in day old chicken
f
127
Lymphoid leukosis is the most frequent form of avian leukosis
t
128
The main way of prevention of avian leukosis is vaccination using attenuated strains
f
129
EIA is a vector borne disease
t
130
EIA virus causes persistent infection
t
131
There is no immune reaction in the case of EIA
f
132
EIA is zoonotic
f
133
Scrapie occurs only in britain and ireland
f
134
There is genetic predisposition in the case of scrapie
t
135
Scrapie prion is shed by the infected animals in different discharges
t
136
Itching is a freq CX of scrapie
t
137
Anthrax cannot be seen in europe anymore
f
138
Capsule is a virulent factor of anthrax
t
139
CO2 is needed for the spore formation of the agent of anthrax
f
140
Pigs are more susceptible to anthrax than sheep
f
141
Cl. chauvoei is the agent of malignant edema
f
142
Malignant edema is generally a consequence of a wound infection
t
143
Frozen food is a predisposing factor of bradsot
t
144
CSF is a predisposing factor of koves disease
t
145
Lamb dysentery can be seen in lambs around weaning
f
146
Lesions of lamb dysentery can be seen in the small intestine
t
147
Isolation of Cl.perfringens from the gut confirms the Dx of lamb dysentery.
f
148
Lambs have to be vaccinated with attenuated vaccine in order to prevent lamb dysentery
f
149
Staph in rabbits typically occurs in newborn rabbits
f
150
Aerogenic infection is common in the case of staph in rabbits
t
151
Arthritis can be a CS of staph infection in rabbits
t
152
Abscess formation can be a CS of staph in rabbits
t
153
Neuraminidase is a virulence factor of erysipelothrix rhusiopathiae
t
154
erysipelothrix rhusiopathiae can be carried and shed by asymptomatic pigs
t
155
Only pigs can be infected with erysipelothrix rhusiopathiae
f
156
Purulent pneumonia is a typical form of acute erysipelas
f
157
Ulcerative lymphangitis of horses is caused by nitrate (-) strains of corynebacterium pseudotuberculosis
F (postivie in horse, negative in others
158
Ulcerative lymphangitis of horses can be a consequence of umbilical infection
t
159
Abscess formation can be seen in the case of ulcerative lymphangitis of horses
t
160
Ulcerative lymphangitis of horses is typically an acute disease
f
161
Influenza viruses infect predominantly lymphatic cells
f
162
Influenza viruses are sensitive to lipid solvents
t
163
Influenza viruses are transmitted exclusively via nasal discharges
f
164
Genetic segment reassortments are responsible for the antigenic drift in seasonal influenza endemics
t
165
Influenza viruses do not cause viraemia in horses
f
166
In case of a swine influenza outbreak, all sick and in-contact animal must be destroyed
f
167
Cats and dogs are resistant to H5N1 influenza A virus
f
168
Birds may shed influenza viruses via their faeces
t
169
Paramyxoviruses cannot be isolated in cell cultures
f
170
Parainfluenza 3 virus in cattle frequently causes oral mucosal erosions and oedema
True (maybe, says IBR is differential which has erosions)
171
The Rinderpest virus is vectored by ticks
false
172
The Peste des petit ruminants virus is a zoonotic agent
f
173
Canine distemper virus frequently infects via the airborne route
t
174
Liver dystrophy and hepatitis are the most characteristic lesions of canine distemper
f
175
Due to the inhibitory effect of maternal antibodies, dogs should not be vaccinated against canine distemper under 6 months of age
f
176
Canine parainfluenza virus 2 is typically transmitted by vertical route
t
177
Lentogenic Newcastle disease virus strains can infect only chicken but not wild birds
f
178
Lentogenic Newcastle disease virus strains can increase their virulence through mutations
false i think
179
Because Newcastle disease is a notifiable disease, preventive vaccination of birds is not allowed
f
180
Hendra virus can cause haemorrhagic nephritis in humans and in dogs
f
181
Egg production problems may be signs of avian influenza
false i think
182
Egg production problems may be signs of Newcastle disease
t
183
Egg production problems may be signs of metapneumovirus infections
t
184
Egg production problems may be signs of infectious bronchitis
t
185
Haemagglutinating encephalomyelitis cannot be differentiated from Teschen disease in sows
false i think
186
In cattle coronavirus may cause respiratory or enteric disease
t
187
Approximately 90% of Feline enteric coronavirus infected cats will subsequently develop peritonitis
f
188
The Feline infectious peritonitis virus and the Canine respiratory coronavirus are antigenically closely related to each other
false i think
189
Geldings are asymptomatic, long-term carriers of the Equine arteritis virus
f
190
Equine arteritis is diagnosed by agarose gel immunodiffusion test (Coggins test)
f
191
The porcine reproductive and respiratory syndrome virus (PRRSV) is present world-wide
t
192
The PRRSV can cause abortion only in gilts during their first pregnancy
f
193
Vesicular stomatitis virus has several serotypes
t
194
Vesicular stomatitis can occur in horses, cattle and swine
t
195
Vesicular stomatitis virus cannot induce good immunity
f
196
Most animals die in vesicular stomatitis
f
197
Paralysis is typical clinical sign of rabies
t
198
Generally furious rabies can be seen in cats
t
199
Interstitial pneumonia is generally seen in post mortem in the case of rabies
f
200
Attenuated rabies vaccines are used for the per os vaccination of foxes
t
