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Epi Pq Final Viro CORRECTED > Classical Swine Fever > Flashcards

Classical Swine Fever Flashcards

1
Q

Haemorrhagic enteritis is a characteristic pathological lesion of Classical swine fever

A

T

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2
Q

Classical Swine Fever is frequently complicated with bacterial infections.

A

T

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3
Q

Classical swine fever virus can be transmitted by raw pork products

A

T

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4
Q

Classical swine fever virus can retain its infectivity for 6 months in frozen meat

A

T

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5
Q

The CSFV may survive in frozen meat for months

A

T

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6
Q

During necropsy enlarged bloody lymph nodes can be seen in Classical swine fever cases

A

T

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7
Q

Because of endothelial damage Classical swine fever results in haemorrhages

A

T

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8
Q

In acute Classical swine fever, at the beginning obstipation, later diarrhoea can be observed

A

T

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9
Q

Classical swine fever targets the bone marrow stem cells

A

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10
Q

Erysipelas and Porcine circovirus 2 infections may cause clinical signs and pathology lesions
similar to CSF

A

T

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11
Q

Weakness of the hind legs and ataxia are clinical signs of Classical Swine Fever

A

T

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12
Q

Ischaemic infarcts at the edges of the spleen are postmortem lesions of subacute Classical
Swine Fever

A

T

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13
Q

The boutons in the intestines are characteristic lesions in subacute Classical Swine Fever

A

T

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14
Q

Kidney haemorrhage is a characteristic lesion of Classical Swine Fever

A

T

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15
Q

Hemorrhages are the most typical lesions of acute CSF

A

T

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16
Q

During necropsy of acute Classical swine fever cases, haemorrhages can be seen in the
gastric mucosa

A

T

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17
Q

Among Classical Swine Fever clinical signs CNS and eye problems can be observed

A

T

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18
Q

The CSFV causes central nervous signs only in suckling piglets

A

F

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19
Q

Classical swine fever infection during the first half of pregnancy results in the birth of
immunotolerant piglets

A

T

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20
Q

CSF infection during the first of half of pregnancy can lead to abortion

A

T

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21
Q

Classical swine fever infection in the second half of the pregnancy leads to foetal
development problems

A

F

NB!!!!!

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22
Q

Shedding of Classical swine fever virus starts 1 week after the infection

A

F

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23
Q

The shedding of CSFV begins 1-2 days after the appearance of clinical signs

A

F

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24
Q

The domestic swine population of most European countries are free from CSF

A

T

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25
Classical swine fever causes oronasal infection
T
26
Classical swine fever can be transmitted by mating
T
27
CSF can cause transplacental infections
T
28
CSFV may case reproductive disorders
T
29
Classical swine fever targets lymphatic tissues
T
30
CSF infections result in thrombocytopenia
T
31
Clinical signs of Classical Swine fever are mainly seen in 6-12 week old piglets in vaccinated herds
T
32
Classical swine fever infection during the first half of pregnancy can lead to abortion
T
33
Wild boars play the main role in the maintenance of CSF virus in endemic areas
T
34
Wild boar may play a role in the maintenance and spread of CSFV
T
35
In Europe it is obligatory to vaccinate against Classical swine fever
F
36
In acute Classical swine fever skin haemorrhages and bloody nasal discharge can be observed
T
37
) Normal sized spleen can be observed in uncomplicated cases of subacute Classical swine fever
T
38
Classical swine fever infection results in immunosuppression
T
39
All wild type strains of classical swine fever virus are highly virulent
F
40
Six distinct serotypes of CSF virus are recognized so far
F
41
CSF virus is an arbovirus
F
42
CSF virus is a zoonotic agent
F
43
Pigs shed CSF virus only during the clinical stage of the disease
F
44
Central nervous signs might be seen in classical swine fever
T
45
Based on pathology and clinical signs, chronic classical swine fever is easy to diagnose
F
46
) In vaccinated herds we mostly see the CSF clinical signs in 6-12 weeks old piglets
T
47
Fomites do not play a role in the transmission of the Classical Swine Fever Virus.
F
48
Transplacental infection with CSFV may cause immunotolerance in new-born piglets
T
49
Swine shed CSFV only in the terminal phase of the disease.
F
50
Europe is free from CSFV .
T "Europe is considered from of CSF atm"- tenk
51
Classical Swine Fever is always an acute disease with high mortality in wild boars
F
52
The large intestine are the earliest lesions in Classical Swine Fever
F
53
The diagnosis of Classical Swine Fever is based on paired serum investigations
F
54
Porcine circovirus 2 may cause lesions similar to Classical Swine Fever. T
T
55
Low virulence strains of CSFV may cause reproductive problems
T
56
CSFV may damage the lymphatic tissues and blood vessel endothelial cells.
T
57
Swine can shed CSFV in the incubation period.
T
58
Skin suffusions and haemorrhages are signs of Classical Swine Fever
T
59
The clinical signs of African Swine Fever and Classical Swine Fever are very different.
F
60
Contaminated pork meat can play a role in the transmission of CSFV.
T
61
Attenuated vaccines are developed for immunization of swine against CSFV.
T
62
All known strains of the Classical Swine Fever virus are of highly virulence.
F
63
The Classical Swine Fever may appear in a milder form in wild boar than in domestic swine.
T
64
Erysipelas and Porcine circovirus 2 infections may cause clinical signs and pathology lesions similar to Classical Swine Fever
T
65
Classical swine fever virus is shed with faces, when boutons appear in the intestines
F
66
Classical swine fever can be eradicated from wild boar populations by oral vaccination.
F
67
Classical swine fever virus is rarely complicated by secondary infections.
F
68
Classical swine fever can be diagnosed easily by the characteristic symptoms and lesions.
F
69
Domestic swine stocks are free of classical swine fever in most of the European countries.
T
70
Acute classical swine fever can cause haemorrhagic pneumonia.
T
71
Classical swine fever virus doesn't induce neutralizing antibody production
F
72
Classical swine fever virus is inactivated in chilled meat at -20°C.
F
73
Classical swine fever virus can cause immunotolerance in swine
T
74
Only DIVA vaccines should be used to prevent classical swine fever in swine stocks.
F
75
Classical swine fever virus causes lympho-histiocytic encephalitis in pigs.
T
76
Classical swine fever virus causes lympho-histiocytic encephalitis in carnivores.
F
77
Classical swine fever Virus spreads slowly in the host and causes mainly chronic disease.
F
78
Complicated forms of the Classical swine fever are rarely seen.
F
79
The Classical swine fever virus may cause reproductive disorders
T
80
Haemorrhages are the most typical lesions of acute Classical swine fever.
T
81
Classical swine fever can unambiguously diagnosed by the clinical signs and pathology.
F
82
Domestic swine of most European countries are free from Classical swine fever virus.
T
83
The Classical swine fever may appear in a milder form in wild boar than in domestic swine.
T
84
Low virulence strains of CSFV may lead to asymptomatic infection.
T
85
CSF is spread via infected pigs
T
86
Sows infected by CSF will have immunotolerant piglets.
T
87
Piglets of sows vaccinated against CSF are vaccinated at 6-12 months
F
88
To prevent CSF, we vaccinate pigs older than 6 months of age with live vaccine.
F
89
To prevent CSF we use inactivated vaccines made from the Chinese strain.
F
90
CSF can be prevented by inactivated vaccines.
F
91
CSF can hardly be distinguished from African swine fever.
T
92
CSF always causes abortion in pigs.
F
93
Hungary does not have to make any preventative action against CSF.
F
94
Incubation of CSF is 8-22 days.
T
95
CSF was first written about in USA.
T
96
First symptom of CSF is drooping ears
F
97
CSF virus has good resistance.
T
98
Classical swine fever virus (CSFV) is mainly transmitted by mosquitoes.
F
99
The presence of CSFV in a herd does not influence reproduction parameters.
F
100
CSF is frequently complicated with bacterial infections.
T
101
The clinical signs of CSF and ASF are similar.
T
102
Central nervous signs are never seen in CSF.
F
103
Serological cross reactions my occur between BVD virus and CSFV.
F
104
Only inactivated vaccines are available against CSFV.
F attenuated
105
It is a disease of domestic swine and wild boars, but several other species are also suceptible.
F
106
Only domestic swine and wild boars are susceptible.
T
107
Fever, anorexia haemorrhages in the skin and weakness of the hind legs are the most important signs.
T
108
For prevention, state medical steps and vaccination are used in Europe.
F
109
The CSFV typically damages endothelial- and lymphatic tissues.
T
110
Boutons in the large intestine are the earliest lesions in CSF.
F
111
In Europe vaccination of domestic pigs against Classical swine fever is common
F
112
Classical swine fever is a notifiable disease in Europe
T
113
In Europe vaccination of domestic swine populations against CSF is compulsory
F
114
Classical swine fever virus strains are classified into several serotypes
F
115
In subacute CSF we can observe signs of pneumonia during necropsies
T

Epi Pq Final Viro CORRECTED (123 decks)

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