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Epi > Reo > Flashcards

Reo Flashcards

1
Q

Orbiviruses can be cultivated in vivo by inoculation of embryonated eggs

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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

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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

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9
Q

Avian orthoreoviruses can cause damages in the bursa Fabricii

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10
Q

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

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11
Q

Trypsin-sensititive avian orthoreovirus usually cause respiratory disease in birds

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12
Q

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

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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

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15
Q

Trypsin resistant strains of Avian orthoreoviruses frequently cause diarrhoea

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16
Q

Trypsin sensitive strains of avian orthoreoviruses frequently cause tenosynovitis

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17
Q

Infection of adult birds with Orthoreoviruses usually remains subclinical

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18
Q

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

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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

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22
Q

Orthoreovirus infections cause immunosuppression in birds

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23
Q

Tenosynovitis is a frequent sign of Avian Orthoreovirus infection

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24
Q

Orthoreovirus mainly infects younger animals

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25
Q

Orthoreovirus causes respiratory and GI disease

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26
Q

Rotaviruses predispose to E.Coli infection in suckling piglets

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27
Q

Rotaviruses are shed in the faeces in high titres

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28
Q

Losses due to rotavirus infection of young animals can be prevented by colostrum feeding

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29
Q

Rotaviruses usually cause enteritis in young (1-2 weeks old) animals

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30
Q

Rotaviruses are typically transmitted via the faecal oral route

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31
Q

Swine rotavirus infection is frequently followed by E. coli secondary infection in piglets

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32
Q

Rotaviral enteritis of calves can be prevented by immunization of pregnant cows

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33
Q

Vaccination of horses in the Americas is used to prevent rotavirus infections

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34
Q

Ibaraki disease is clinically very similar to bluetongue

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35
Q

Lameness is a frequent symptom of bluetongue in sheep

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36
Q

Bluetongue virus can cause bloody diarrhoea in lambs T

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37
Q

Bluetongue is named after cyanosis of the tongue

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38
Q

The bluetongue virus is vectored by midges/ gnats

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39
Q

Cattle can carry the bluetongue virus for years without symptoms

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40
Q

Bluetongue virus is also foetopathic

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41
Q

Bluetongue virus may cause foetal developmental problems

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42
Q

Lameness and abortion are signs of bluetongue

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43
Q

Bluetongue can be transmitted by semen

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44
Q

Goats are more resistant to the bluetongue than sheep

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45
Q

Vaccination against Bluetongue results serotype specific immunity

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46
Q

Endothelial damages are the most important causes of the clinical signs of bluetongue

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47
Q

A serotype 8 of bluetongue virus strain caused severe outbreak in Europe in 2006-2009

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48
Q

Bluetongue outbreaks mainly occur is summer and autumn

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49
Q

Bluetongue vaccines induce serotype-specific immunity

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50
Q

In utero Bluetongue virus infection may result in immunotolerance

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51
Q

Bluetongue is an Orbivirus

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52
Q

Bluetongue primarily spreads with blood sucking insects

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53
Q

Bluetongue replicates in endothelial cells of blood vessels

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54
Q

The causative agent of Bluetongue multiplies in endothelium

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55
Q

Bluetongue causes skin signs in bovine

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56
Q

Lameness is one of the clinical signs of Bluetongue disease in sheep

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57
Q

Ibarki disease is a Bluetongue-like disease in Asia and in America

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58
Q

The epizootic haemorrhagic fever is observed in the USA in wild deer

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59
Q

Epizootic hemorrhage fever is a Bluetongue-like disease of wild ruminants in America

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60
Q

The Infectious equine arthritis and the African horse sickness may have similar clinical signs

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61
Q

Oedemas and haemorrhages are the most frequent lesions in African horse sickness

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62
Q

Frothy nasal discharge is a characteristic sign of African horse sickness

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63
Q

The subacute form of African horses sickness is causing oedema formation and heart failure

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64
Q

Carnivores are susceptible to African horse sickness

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65
Q

Occasionally carnivores may get infected with African horse sickness virus

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66
Q

The natural reservoirs of the African horse sickness virus are mainly zebras

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67
Q

Subcutaneous oedema is a frequent symptom of subacute African horse sickness

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68
Q

Zebras are more resistant to African horse sickness than horses

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69
Q

Immunized horses may develop a chronic febrile form of the African horse sickness

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70
Q

The chronic form of African horse sickness may be similar to EIA

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71
Q

African horse sickness is a communicable disease

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72
Q

The signs of chronic African Horse Sickness and Equine Infectious anaemia may be similar

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73
Q

The natural reservoirs of the African Horse Sickness virus are mainly zebras

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74
Q

African horse sickness is a notifiable (communicable) disease in Europe

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75
Q

African horse sickness can cause lung oedema

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76
Q

African horse sickness is prevented in Africa by combined vaccines

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77
Q

Respiratory signs are the most frequent symptoms in acute African Horse Sickness

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78
Q

Carriers for African Horse Sickness are zebras and donkeys

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79
Q

African Horse Sickness is not present in Europe today

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80
Q

African Horse Sickness is caused by an arbovirus

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81
Q

African Horse Sickness is caused by Orbivirus

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82
Q

The most characteristic post mortem lesion in African Horse Sickness is haemorrhages and oedema

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83
Q

Horses are more susceptible than zebra in African Horse Sickness

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84
Q

The African Horse Sickness virus may infect dogs too

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85
Q

The subacute form of the African horse sickness is mainly characterized by oedematisation and cardiac dysfunctions

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86
Q

Horse encephalosis is endemic in Africa

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87
Q

Equine encephalosis can result in abortion

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88
Q

Equine encephalosis is transmitted by mosquitoes

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89
Q

Midges are the main vectors of the Equine encephalosis virus

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Epi (19 decks)

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