Reo Flashcards

(89 cards)

1
Q

Orbiviruses can be cultivated in vivo by inoculation of embryonated eggs

A

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2
Q

Genetic reassortments may cause significant antigenic changes in reovirus strains

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3
Q

Orbiviruses are mainly arboviruses

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4
Q

Orthoreoviruses can cause pneumoenteritis in calves

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5
Q

Orthoreoviruses can cause pneumoenteritis in cattle

A

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6
Q

Avian orthoreo –and rotaviruses can cause runting sunting syndrome in chickens

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7
Q

Infection of adult birds with orthoreoviruses usually remains subclinical

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8
Q

Avian orthoreoviruses usually transmitted by germinative route

A

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9
Q

Avian orthoreoviruses can cause damages in the bursa Fabricii

A

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10
Q

Tenosynovitis is one of the most frequent manifestations of avian orthoreovirus infections

A

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11
Q

Trypsin-sensititive avian orthoreovirus usually cause respiratory disease in birds

A

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12
Q

Avian orthoreoviruses may cause necrotic foci in the visceral organs of birds

A

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13
Q

Avian orthoreoviruses can cause inapparent infection in poultry

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14
Q

Orthoreoviruses can be detected by haemagglutination test

A

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15
Q

Trypsin resistant strains of Avian orthoreoviruses frequently cause diarrhoea

A

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16
Q

Trypsin sensitive strains of avian orthoreoviruses frequently cause tenosynovitis

A

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17
Q

Infection of adult birds with Orthoreoviruses usually remains subclinical

A

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18
Q

Avian orthoreoviruses can cause poult enteritis-mortality syndrome (PEMS)

A

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19
Q

Infectious tenosynovitis can be prevented by vaccination

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20
Q

All Avian orthoreoviruses can spread germinatively

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21
Q

Helicopter disease causes feather problems

A

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22
Q

Orthoreovirus infections cause immunosuppression in birds

A

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23
Q

Tenosynovitis is a frequent sign of Avian Orthoreovirus infection

A

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24
Q

Orthoreovirus mainly infects younger animals

A

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25
Orthoreovirus causes respiratory and GI disease
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26
Rotaviruses predispose to E.Coli infection in suckling piglets
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27
Rotaviruses are shed in the faeces in high titres
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28
Losses due to rotavirus infection of young animals can be prevented by colostrum feeding
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29
Rotaviruses usually cause enteritis in young (1-2 weeks old) animals
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30
Rotaviruses are typically transmitted via the faecal oral route
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31
Swine rotavirus infection is frequently followed by E. coli secondary infection in piglets
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32
Rotaviral enteritis of calves can be prevented by immunization of pregnant cows
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33
Vaccination of horses in the Americas is used to prevent rotavirus infections
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34
Ibaraki disease is clinically very similar to bluetongue
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35
Lameness is a frequent symptom of bluetongue in sheep
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36
Bluetongue virus can cause bloody diarrhoea in lambs T
T
37
Bluetongue is named after cyanosis of the tongue
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38
The bluetongue virus is vectored by midges/ gnats
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39
Cattle can carry the bluetongue virus for years without symptoms
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40
Bluetongue virus is also foetopathic
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41
Bluetongue virus may cause foetal developmental problems
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42
Lameness and abortion are signs of bluetongue
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43
Bluetongue can be transmitted by semen
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44
Goats are more resistant to the bluetongue than sheep
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45
Vaccination against Bluetongue results serotype specific immunity
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46
Endothelial damages are the most important causes of the clinical signs of bluetongue
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47
A serotype 8 of bluetongue virus strain caused severe outbreak in Europe in 2006-2009
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48
Bluetongue outbreaks mainly occur is summer and autumn
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49
Bluetongue vaccines induce serotype-specific immunity
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50
In utero Bluetongue virus infection may result in immunotolerance
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51
Bluetongue is an Orbivirus
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52
Bluetongue primarily spreads with blood sucking insects
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53
Bluetongue replicates in endothelial cells of blood vessels
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54
The causative agent of Bluetongue multiplies in endothelium
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55
Bluetongue causes skin signs in bovine
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56
Lameness is one of the clinical signs of Bluetongue disease in sheep
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57
Ibarki disease is a Bluetongue-like disease in Asia and in America
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58
The epizootic haemorrhagic fever is observed in the USA in wild deer
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59
Epizootic hemorrhage fever is a Bluetongue-like disease of wild ruminants in America
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60
The Infectious equine arthritis and the African horse sickness may have similar clinical signs
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61
Oedemas and haemorrhages are the most frequent lesions in African horse sickness
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62
Frothy nasal discharge is a characteristic sign of African horse sickness
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63
The subacute form of African horses sickness is causing oedema formation and heart failure
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64
Carnivores are susceptible to African horse sickness
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65
Occasionally carnivores may get infected with African horse sickness virus
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66
The natural reservoirs of the African horse sickness virus are mainly zebras
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67
Subcutaneous oedema is a frequent symptom of subacute African horse sickness
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68
Zebras are more resistant to African horse sickness than horses
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69
Immunized horses may develop a chronic febrile form of the African horse sickness
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70
The chronic form of African horse sickness may be similar to EIA
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71
African horse sickness is a communicable disease
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72
The signs of chronic African Horse Sickness and Equine Infectious anaemia may be similar
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73
The natural reservoirs of the African Horse Sickness virus are mainly zebras
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74
African horse sickness is a notifiable (communicable) disease in Europe
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75
African horse sickness can cause lung oedema
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76
African horse sickness is prevented in Africa by combined vaccines
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77
Respiratory signs are the most frequent symptoms in acute African Horse Sickness
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78
Carriers for African Horse Sickness are zebras and donkeys
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79
African Horse Sickness is not present in Europe today
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80
African Horse Sickness is caused by an arbovirus
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81
African Horse Sickness is caused by Orbivirus
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82
The most characteristic post mortem lesion in African Horse Sickness is haemorrhages and oedema
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83
Horses are more susceptible than zebra in African Horse Sickness
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84
The African Horse Sickness virus may infect dogs too
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85
The subacute form of the African horse sickness is mainly characterized by oedematisation and cardiac dysfunctions
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86
Horse encephalosis is endemic in Africa
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87
Equine encephalosis can result in abortion
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88
Equine encephalosis is transmitted by mosquitoes
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89
Midges are the main vectors of the Equine encephalosis virus
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