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EPI PQ > Orthobunya FERDIG > Flashcards

Orthobunya FERDIG Flashcards

1
Q

All Bunyaviruses are transmitted by mosquitoes

A

F

– mainly mosquito or tick vectors

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2
Q

Bunyaviruses cause oral infection

A

F

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3
Q

The virus causing severe fever and thrombocytopenia syndrome is transmitted

A

T

Phlebovirus causing rift valley fever

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4
Q

Several bunyaviruses are zoonotic agents

A

T

  • Hantaviruses
  • Rift Valley fever virus
  • Crimean-Congo hemorrhagic fever virus
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5
Q

Serological cross-reactions are frequent between related bunyaviruses

A

T
?

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6
Q

All bunyaviruses are vectored by insects

A

F

-Hantavirus genus within the Bunyaviridae family is primarily transmitted to humans through inhalation of aerosolized virus particles from rodent feces, urine, or saliva

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7
Q

All bunyaviruses are vectored by ticks

A

F

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8
Q

Orthobunyaviruses are transmitted by haematophagous arthropods

A

T

-hematophagous (blood-feeding) arthropods, such as mosquitoes, midges, or ticks.

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9
Q

Several virus species belong to Bunyaviridae family, many present only in tropical regions.

A

T

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10
Q

Bunyaviruses are typically arboviruses

A

T

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11
Q

Bunyaviriuses has good antigens and good immune reaction

A

T
?

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12
Q

The Rift Valley Fever virus causing severe fever and thrombocytopenia syndrome is transmitted by tick

A

T

Phlebovirus: Rift Valley Fever, severe fever and thrombocytopenia syndrome

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13
Q

The Aino virus causes foetal development problems and abortion in sheep

A

T

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14
Q

Akabane virus is zoonotic

A

F

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15
Q

Akabane virus causes foetal damages in dogs

A

F

  • Turkey; cattle, sheep, goat;
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16
Q

Akabane disease virus causes foetal damages in sheep

A

T

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17
Q

Abortions and foetal malformations are the most typical signs of Akabane disease

A

T
?

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18
Q

The Akabane disease is mainly seen in geese

A

F
-cattle, sheep, goat

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19
Q

The Akabane disease can cause abortion in sheep

A

T
?

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20
Q

The main symptoms of the akabane disease are foetal development disorders

A

T
?

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21
Q

The main symptoms of akabane disease are the malformation of the fetus

A

T
?

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22
Q

Akabane, Aino and Schmallenberg viruses cause similar disease in ruminants

A

T
?

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23
Q

Akabane occurs in South-West Africa and is a disease of swine

A

F

In Asia, Africa and Australia

Causes diseases in: sheep, cattle, goat, turkey

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24
Q

Schmallenberg virus causes disease only in Suffolk sheep breed

A

F

  • Suffolk, Texel, Blue Texel
  • Dairy, Flevolander
  • Swifter, Blessumer
  • cross-breeds
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25
Schallenberg virus causes foetal damages in humans
F -Ø human
26
Schmallenberg virus causes foetal development problems more frequently in cattle than in sheep
F Sheep is more sensitive, in cattle congenital disorders are rarely seen
27
Schmallenberg virus is present worldwide
F - europe
28
Human is a competent host of Rift Valley fever virus i.e. the viraemic titre is high enough to infect the vector
T
29
The Rift valley fever virus damages the blood vessels thus causes haemorrhages
T
30
Wild rabbits are reservoirs of Rift valley fever virus
F
31
Rift valley fever is a human only disease
F most commonly seen in domestic animals ( cattle, buffalo, sheep, goats, camels)
32
Nairobi sheep disease causes generalized infection in the animals
T
33
Vaccines are available in endemic regions to prevent Nairobi sheep disease
T
34
Nairobi sheep disease leads to abortion in the infected pregnant animals
T
35
Nairobi sheep disease causes haemorrhagic enteritis in the infected animals
T
36
Small rodents serve as reservoir hosts of Hantaviruses
T
37
Hantaviruses can cause renal failure in human
T
38
The Crimean-congo haemorrhagic fever is a human disease with headache, muscle pain and skin haemorrhages
T
39
Crimean-Congo Haemorrhagic fever virus is tick born
T
40
Schmallenberg virus causes foetal damages in pigs
F
41
Schmallenberg virus causes foetal damages in sheep
T
42
Schmallenberg virius associated disease as 1st observed in 2011 in certain Western European countries
T
43
The Schmallenberg virus causes severe disease in humans
F -no human
44
The acute signs of Schmallenberg virus infection in cattle are fever and reduced milk production
T
45
Rodents are the reservoir hosts of Schmallenberg virus.
T
46
In cattle Schmallenberg virus causes transient febrile disease with reduced milk production.
T
47
The Schmallenberg virus is a zoonotic agent
F
48
Ticks are reservoirs and vectors of the Schmallenberg virus
F
49
Schmallenberg virus was transported to Europe from South-America
F
50
Schmallenberg virus emerged in Western Europe, in 2011, and spread rapidly in ruminants.
T
51
In sheep the Schmallenberg virus mainly causes foetal malformations.
T
52
Schmallenberg spread by midges vectors
T **Culicoides spp**
53
No human case report on Schmallenberg virus
T But due to it being a bunyavirus, we cannot rule out zoonosis
54
Pneumonia and abortion are the main signs of Schmallenberg virus infection in sheep.
F
55
Midges are the main vectors of Schmallenberg virus
T
56
Signs of acute Schmallenberg virus infection in cattle are lower and reduced milk production.
T
57
The rift valley fever virus causes foetal damages in sheep
F
58
Certain European mosquito species are competent vectors of Rift Valley fever virus
T **Aedes mosquitos are primary vectors, which are present in Europe**
59
Rift Valley fever may cause high lethality in young ruminants
T **10-70% lethality in calves**
60
Rift Valley fever virus is a zoonotic agent.
T **Humans show more severe clinical signs**
61
The Rift Valley fever virus can cause reproductive disorders in cattle and sheep
T
62
Necrotic hepatitis is a lesion of Rift Valley fever
T
63
Rift-valley fever caused human epidemics in Africa
T
64
Rift Valley fever virus caused severe human outbreaks in Africa and in the Arab peninsula.
T
65
The principle vectors of the rift valley disease are gnats
F **Primary vector=*aedes mosquitos***
66
Rift valley fever outbreaks are most frequently seen in horses
F **ruminants**
67
Rift valley fever virus may cause 100% mortality in young susceptible animals
T
68
In enzootic regions vaccines are used for the prevention of rift valley fever
T **In non-endemic regions we use epidemiological restrictions**
69
Nairobi disease virus causes foetal damages in sheep
T
70
The Nairobi sheep disease can cause abortion in sheep.
T
71
The most frequent sign of the Nairobi sheep disease is encephalitis
F
72
Haemorrhagic gastroenteritis is a lesion of Nairobi sheep disease
T **We see haemorrhages everywhere**
73
Nairobi sheep disease is zoonotic
T **Depending on country if it is notifiable or not, but it is OIE listed**
74
Nairobi sheep disease can cause haemorrhagic enteritis among sheep.
T
75
The most important symptom of the Nairobi sheep disease is nephritis
F
76
Nairobi disease occurs mainly in sheep
T
77
The leading symptom of Nairobi disease is renal insufficiency
F
78
The Nairobi sheep disease is vectored by ticks
T
79
Nairobi sheep disease primarily causes pathological changes in the kidney (renal insufficiency)
F
80
Hantaviruses may cause respiratory disease in humans
T
81
Hantaviruses causes haemorrhagic fever in humans
T
82
Hantaviruses cause hemorrhagic fevers in rodents
F **Rodents are reservoirs, they show no signs of disease**
83
Hanta viruses can cause renal symptoms in humans
T
84
Mainly rodents are the natural reservoir of hanta viruses
T
85
Hanta viruses are naturally maintained by rodents
T
86
In domestic animals Hanta viruses typically cause liver dystrophy
F **Hanta viruse affects humans**
87
Hanta virus infected people may develop severe renal failure
T
88
Rodents are reservoir for Hanta virus
T
89
Hanta virus cause renal disorders in humans
T
90
Hanta viruses cause encephalitis in horses
F

EPI PQ (81 decks)

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