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EPI.o.i.d > Flaviviruses General Louping Ill Tickborne encephalitis WNF > Flashcards

Flaviviruses General Louping Ill Tickborne encephalitis WNF Flashcards

1
Q

Serological cross reactions frequently occur between related flaviviruses

A

T

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2
Q

Flavivirus from distinct serotypes without serological cross-reactions

A

F

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3
Q

Many of the flaviviruses are zoonotic agents

A

T

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4
Q

Pestiviruses are zoonotic

A

F

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5
Q

Pestiviruses are arboviruses

A

F

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6
Q

Viruses of the Pestivirus genus are more resistant in the environment than the members of the Flavivirus genus

A

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7
Q

Viruses of the Pestivirus genus are more resistant in the environment than the other members of the Flavivirus genus

A

T

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8
Q

Yellow fever virus and Dengue virus are human pathogens

A

T

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9
Q

Flaviviruses are resistant to lipid solvents

A

F

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10
Q

Louping ill is seen in cattle in North America

A

F

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11
Q

The louping ill was introduced to Australia to control rabbit population

A

F

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12
Q

The louping ill is seen in cattle in Great Britain and Scandinavia

A

F

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13
Q

The principle vector of the Louping ill virus is Rhipicephalus appendiculatus

A

F

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14
Q

Louping ill is present only in tropical and subtropical countries

A

F

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15
Q

Louping ill is most frequently seen in sheep

A

T

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16
Q

Abortion and foetal malformations are the most typical signs of louping ill in sheep

A

F

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17
Q

The Louping Ill is seen in rabbits in Australia

A

F

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18
Q

Louping ill is usually seen in rabbits

A

F

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19
Q

Differential diagnoses of Louping-Ill: Listeria, Rabies, Scrapie

A

T

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20
Q

Louping-Ill is a disease of swine

A

F

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21
Q

Louping ill occurs in the Far-East

A

F

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22
Q

Louping ill is transmitted by mosquitoes and midges

A

F

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23
Q

The tick borne encephalitis is endemic in central Europe

A

T

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24
Q

The main vectors of tick borne encephalitis virus are sylvatic mammalian species

A

F

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25
The tick borne encephalitis virus can be transmitted via consumption of raw milk
T
26
The consumption of raw goat milk is a possible source of human tick borne encephalitis
T
27
Biphasic fever is a characteristic of TBE
T
28
The Tick-borne encephalitis is widespread in North America
F
29
Consumption of contaminated, raw goat milk is a possible source of human tick-borne encephalitis virus infection
T
30
Inactivated vaccines are used for the prevention of humans from tick-borne encephalitis
T
31
The main vectors of the tick-borne encephalitis virus are Hyalomma and Dermocentor species
F
32
The tick-borne encephalitis virus is resistant to detergents
F
33
Mainly birds develop tick-borne encephalitis
F
34
Tick-borne encephalitis is mainly seen in humans
F
35
Tick-borne encephalitis viruses are present only in tropical regions
F
36
Inactivated vaccines are available against tick-borne encephalitis for humans
T
37
The tick-borne encephalitis is widespread in North America
F
38
Tick-borne encephalomyelitis mainly occurs clinically in humans
T
39
Tick-borne encephalomyelitis occurs throughout Europe and Asia
T
40
Tick-borne encephalomyelitis exists as natural foci infections
T
41
Ruminants are long term carries of tick-borne encephalomyelitis virus
F
42
Tick-borne encephalomyelitis most frequently is seen clinically in ruminants
F
43
Occasionally tick-borne encephalomyelitis virus can be transmitted to humans via consuming raw milk
T
44
Tick-borne encephalomyelitis occurs seasonally
T
45
For humans inactivated tick-borne encephalomyelitis virus vaccines are also available
T
46
Migratory birds play a role in the transmission of West Nile virus
T
47
Mammals are mostly accidental hosts of West Nile Fever virus
T
48
West Nile Fever is a notifiable disease
T
49
In West Nile epidemics wild bird mortality is usually observed before horse and human cases can be detected
T
50
To prevent West Nile Fever, vaccine is available for horses
T
51
The West Nile Fever can be diagnosed unambiguously by the clinical signs
F
52
The West Nile Fever virus infects mostly swine and cattle
F
53
The West Nile virus may cause encephalitis in humans and in horses
T
54
Horses and humans do not play a significant role in the transmission of West Nile virus
T
55
The West Nile fever epidemics occur usually at the end of summer and during Autumn
T
56
WNV typically causes reproductive problems in cattle
F
57
Fomites play the most significant role in the transmission of WNV
F
58
West Nile Virus is only present in Africa
F
59
Wild birds are the natural hosts of West Nile virus
T
60
WNV causes central nervous signs in 80-90% of the infections
F
61
WNV cannot be isolated in cell cultures
F
62
Vaccines are available for the prevention of horses from WNV infections
T
63
Horses are the reservoirs host of WNV
F
64
Different genetic lineages of West Nile virus are circulating in Europe
T
65
Various strains of WNV, belonging to different genetic lineages are circulating in Europe
T
66
There is no vaccine available for humans against WNV infection yet
T
67
Mosquitoes are the principle vectors of the WNV
T
68
The weather does not influence the occurrence of WNV outbreaks
F
69
The sero-diagnostics of WNV is complicated by cross-reactions with related flaviviruses
T
70
Certain predatory bird species are particularly sensitive to WNV infections
T
71
The use of repellents may reduce the risk of infection with WNV
T
72
The weather influences the emergence of West Nile Virus outbreaks, through its effect on mosquito propagation dynamics
T
73
Laboratory diagnosis should confirm the aetiology of West Nile encephalitis
T
74
West-Nile fever practically is restricted to Africa
F
75
The most important maintaining hosts of West Nile fever virus are water birds
T
76
Clinical signs of West Nile fever are most frequently seen in birds, horses and humans.
T
77
Neurological signs develop only in a small percentage of the diseased animals
T
78
West Nile fever occurs worldwide
T
79
Vectors of West Nile fever virus are different mosquito species
T
80
The host range of West Nile virus is very wide
T
81
Humans are not susceptible to West Nile disease virus
F
82
The sero-diagnostics of West Nile virus is complicated by cross-reactions with related flaviviruses
T
83
The West Nile Virus is genetically uniform, but at least 15 serotypes are known
F
84
Fomites play the most significant role in the transmission of the West Nile Virus.
F
85
The principal vectors of the West Nile Virus are midges
F
86
West Nile Virus mainly causes diarrhoea in sheep
F
87
West Nile Virus cannot be isolated in cell cultures
F
88
West Nile Virus is the only known zoonotic flavivirus
F
89
The Japanese encephalitis virus causes abortion in swine
T
90
The Wesselsbron disease causes meningoencephalitis in turkey
F
91
The yellow fever virus causes liver damages
T
92
The zika virus causes fever, rash and conjunctivitis in humans
T

EPI.o.i.d (50 decks)

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