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Epi > Herpesviruses > Flashcards

Herpesviruses Flashcards

1
Q

1) Herpesviruses are good antigens

A

false

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2
Q

2) Alphaherpesviruses are host specific slowly multiplying (>24hrs) viruses

A

false

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3
Q

3) Alphaherpesviruses may cause latent infection in neurons or ganglia

A

true

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4
Q

4) Some herpesviruses have a broad host spectrum (euryxen)

A

true

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5
Q

5) Gammaherpesviruses may cause latent infection in neurons of ganglia

A

true, should be false, only in lymphoid cells - alpha is in neurons

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6
Q

6) Herpes viruses are resistant to detergents

A

false

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7
Q

7) Herpesviruses are sensitive to detergents

A

true

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8
Q

8) Herpesviruses are generally weak antigens

A

true

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9
Q

9) Herpesviruses can cause latent persistent infections

A

true

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10
Q

10) Herpesviruses are typically stenoxen viruses, but there are significant exceptions

A

true

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11
Q

11) Herpesviruses are strong antigens, therefore single vaccinations provide lifelong protection

A

false

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12
Q

12) Herpesviruses are enveloped viruses, therefore they are sensitive to detergents

A

true

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13
Q

13) There are no serological cross-reactions between different herpesvirus species

A

false

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14
Q

14) Because the genome of herpesviruses is very stable, no attenuated mutant vaccine strains are available

A

false

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15
Q

15) Infectious bovine vulvovaginitis virus strains cause abortions and foetal deformities

A

false

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16
Q

16) Herpesvirus infections frequently result in latent virus carry

A

true

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17
Q

17) Herpesviruses usually cause latent infections and life-long virus carries

A

true

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18
Q

1) Infectious bovine rhinotracheitis virus can cause abortion.

A

true

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19
Q

2) The use of marker vaccines can help the eradication of infectious bovine rhinotracheitis virus

A

true

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20
Q

3) The most frequently used eradication strategy for IBRV is selection with the help of marker vaccines

A

true

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21
Q

4) Marker vaccines can be used in IBRV eradication programs in cattle farms

A

true

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22
Q

5) Antibodies against infectious bovine rhinotracheitis virus (IBRV) might be detected in the milk

A

true

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23
Q

6) Conjunctivitis and blepharitis are signs of infectious bovine rhinotracheitis

A

true

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24
Q

7) The infectious bovine rhinotracheitis virus (IBRV) causes haemorrhagic gastroenteritis

A

false

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25
Q

8) Infectious bovine rhinotracheitis virus also causes mastitis in cows

A

false

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26
Q

9) Infectious bovine rhinotracheitis virus is transmitted by arthropods

A

false

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27
Q

10) Infectious bovine rhinotracheitis virus can cause fatal encephalitis in calves

A

true

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28
Q

11) Infectious Bovine Rhinotracheitis virus frequently causes encephalitis in old cow and bulls

A

false

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29
Q

12) Infectious Bovine Rhinotracheitis virus frequently causes encephalitis in old sow and bulls

A

false

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30
Q

13) Infectious Bovine Rhinotracheitis can be endemic on cattle farms

A

true

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31
Q

14) Infectious bovine rhinotracheitis virus can cause skin lesions on the genitals

A

true

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32
Q

15) Bulls can shed the infectious bovine rhinotracheitis with semen

A

true

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33
Q

16) The infectious bovine rhinotracheitis virus (IBRV) may spread via semen

A

true

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34
Q

17) Pregnant cows should be immunized with inactivated vaccines against IBRV

A

true

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35
Q

18) Pregnant cows should be immunized against IBRV only with inactivated vaccine

A

true

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36
Q

19) Attenuated vaccines are used in pregnant cows against Infectious Bovine Rhinotracheitis virus

A

false

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37
Q

20) Pregnant cows can be immunized against IBRV only with attenuated vaccines

A

false

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38
Q

21) Because Bovine herpesvirus l causes latent infections; it is not possible to eradicate it from a cattle population

A

false

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39
Q

22) Bovine herpesvirus l may cause encephalitis in calves

A

true

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40
Q

23) IBRV may cause encephalitis in calves

A

true

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41
Q

24) Only inactivated vaccines are available against Bovine herpesvirus l.

A

false

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42
Q

25) Bovine herpesvirus 1 may be transmitted through semen

A

true

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43
Q

26) Seropositive cattle cannot be carriers of the Infections Rhinotracheitis virus.

A

false

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44
Q

27) Infectious Bovine Rhinotracheitis virus (IBRV) can be transmitted through vectors

A

false

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45
Q

28) The IBR virus causes nephritis in calves usually in the age between one and six months

A

false

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46
Q

29) Infectious Bovine Rhinotracheitis (IBR) cause serous nasal discharge.

A

false, should be true, starts off as serous and becomes mucopurulent

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47
Q

30) Infectious Bovine Rhinotracheitis in 6-month-old calves usually causes pneumonia.

A

true

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48
Q

31) Infectious Bovine Rhinotracheitis in cattle 6 months of age can cause encephalitis

A

false

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49
Q

32) Infectious Bovine Rhinotracheitis often cause genital lesions with vesicles

A

true

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50
Q

33) Infectious Bovine Rhinotracheitis may cause inflammation of conjunctiva.

A

true

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51
Q

34) Infectious Bovine Rhinotracheitis cause purulent discharge

A

true

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52
Q

35) In Hungary the IgE-negative marker vaccine is to be used in the control of Infectious Bovine Rhinotracheitis

A

true

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53
Q

36) Infectious Bovine Rhinotracheitis is rapidly spread within the herd

A

false

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54
Q

37) Infectious Bovine Rhinotracheitis is no longer present in Hungary

A

false

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55
Q

38) The respiratory form of Infectious Bovine Rhinotracheitis is often followed by genital symptoms

A

false

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56
Q

39) Infectious Bovine Rhinotracheitis spreads slowly within a herd

A

true

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57
Q

40) We can see characteristic clinical signs of Infectious Bovine Rhinotracheitis in day-old calves

A

false

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58
Q

41) We are doing Infectious Bovine Rhinotracheitis virus eradication programs in Hungary

A

true

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59
Q

42) Infectious Bovine Rhinotracheitis virus mainly cause encephalitis in cattle older than 6 months

A

false

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60
Q

43) Infectious Bovine Rhinotracheitis mainly causes pneumonia in 1-6 months old calves

A

true

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61
Q

44) Infectious Bovine Rhinotracheitis is rare, BHV-1 only affects cattle

A

false

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62
Q

45) In the transmission IBRV, the most important route is the germinative route

A

false

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63
Q

46) Genital form of IBR is often followed by abortion

A

false

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64
Q

47) IBR can occur in several clinical forms.

A

true

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65
Q

48) IBR is a frequent infection, cattle and its closest relatives are affected

A

true

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66
Q

1) Bovine Herpes virus 2 frequently causes abortion

A

false

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67
Q

2) Bovine herpes mamillitis virus can cause mastitis in cows

A

false, should be true, doesnt cause it per se but does predispose as milking is painful, so they avoid it

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68
Q

3) Bovine herpes mamillitis virus may cause lesions on the muzzle of suckling calves

A

true

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69
Q

4) The bovine herpes mamillitis virus causes lesions on the skin of the milkers, therefore it is a zoonotic agent

A

false

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70
Q

5) Bovine herpesvirus 2 may cause generalised skin lesions

A

true

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71
Q

6) Bovine herpesvirus 2 is the most frequent primary cause of mastitis in cattle

A

false

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72
Q

7) Bovine Herpes Mammillitis virus causes milkers’ nodules in humans

A

false

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73
Q

8) Bovine Herpes Mammillitis virus may cause lesions on the lips of milking calves

A

true

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74
Q

9) Regarding Bovine Herpes Mammillitis, mainly heifers show clinical signs

A

true

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75
Q

1) Swine inclusion body rhinitis virus is causing mainly subclinical infection

A

true

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76
Q

2) Bloody nasal discharge can be a sign of swine inclusion body rhinitis

A

true

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77
Q

3) Clinical manifestation of swine inclusion body rhinitis is usually seen in piglets less than 3 weeks old

A

true

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78
Q

4) Inclusion body rhinitis is predisposing to fatal respiratory disease in pigs

A

false

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79
Q

5) Suid herpesvirus 2 may cause upper respiratory tract disease in piglets

A

true

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80
Q

6) Swine Inclusion Body Rhinitis is usually seen in piglets

A

true

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81
Q

7) The Swine Inclusion Body Rhinitis virus may cause reproductive problems in sows

A

true

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82
Q

1) Malignant catarrhal fever is mostly fatal in sheep

A

false

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83
Q

2) Malignant catarrhal fever is an alphaherpesvirus causing latent infection in ganglia

A

false

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84
Q

3) Malignant catarrhal fever develops only in suckling calves up to two weeks of age

A

false

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85
Q

4) Malignant catarrhal fever can be seen only in calves younger than one month

A

false

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86
Q

5) Malignant catarrhal fever causes only mild respiratory disease in sheep

A

false

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87
Q

6) Sheep should be immunised against malignant catarrhal fever virus

A

false

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88
Q

7) Malignant catarrhal fever may develop in swine too

A

true

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89
Q

8) Malignant catarrhal fever is frequently seen in cats

A

false

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90
Q

9) Cattle should be vaccinated against malignant catarrhal fever

A

false

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91
Q

10) Goats are the reservoir hosts of the malignant catarrhal fever virus

A

false

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92
Q

11) The incubation period of malignant catarrhal fever is less than one week

A

false

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93
Q

12) Malignant catarrhal fever is quickly spreading from cattle to cattle.

A

false

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94
Q

13) Cattle should be vaccinated against malignant catarrhal fever in every six months

A

false

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95
Q

14) The malignant catarrhal fever is caused by Bovine Herpes virus-2

A

false

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96
Q

15) Malignant Catarrhal Fever is usually lethal in cattle

A

true

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97
Q

16) Rodents are the reservoir hosts of the Malignant Catarrhal Fever virus

A

false

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98
Q

17) Swine are the reservoir host of the Malignant Catarrhal Fever virus

A

false

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99
Q

18) The Malignant Catarrhal Fever is caused by Bovine herpesvirus-2

A

false

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100
Q

19) We vaccinate calves 2 times against Malignant Catarrhal Fever

A

false

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101
Q

20) Swine are affected by Malignant Catarrhal Fever

A

true

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102
Q

21) Malignant Catarrhal Fever does not occur in Europe

A

false

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103
Q

22) Malignant Catarrhal Fever can cause diarrhoea

A

true

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104
Q

23) Malignant Catarrhal Fever spreads slowly within a cattle herd

A

false

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105
Q

24) Malignant Catarrhal Fever occurs if we keep cattle and sheep together

A

true

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106
Q

25) Malignant Catarrhal Fever does not occur in Hungary

A

false

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107
Q

1) The Aujeszy’s disease virus is stenoxen

A

false

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108
Q

2) Wild boars are not susceptible to Aujeszy’s disease virus.

A

false

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109
Q

3) Abortion of sows can be a sign of Aujeszys disease

A

true

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110
Q

4) Pregnant sows may abort in Aujeszky’s disease

A

true

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111
Q

5) In swine the most serious CS of Aujeszys disease are usually seen in piglets

A

true

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112
Q

6) Dogs should be vaccinated against Aujeszys disease

A

false

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113
Q

7) Carnivores are the reservoir hosts of the Aujeszky’s disease virus

A

false

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114
Q

8) The Aujeszys disease in cats is usually a mild respiratory disease with quick recovery

A

false

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115
Q

9) The signs of Aujeszys disease in dogs are similar to rabies

A

true

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116
Q

10) The natural reservoir hosts of the Aujeszys disease virus are rodents

A

false

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117
Q

11) The Aujeszy disease causes fatal pneumonia in Ruminants and Carnivores

A

false

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118
Q

12) The Aujeszy disease is zoonosis

A

false

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119
Q

13) The symptoms of Aujeszys disease in ruminants is similar to rabies

A

true

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120
Q

14) The Aujeszy disease virus may infect several mammalian hosts

A

true

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121
Q

15) Aujeszys diseases can be latently carried by pigs in the nervous system

A

true

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122
Q

16) Central nervous signs of the Aujeszky’s disease are rarely seen in adult swine

A

true

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123
Q

17) Convalescent swine are life-long carriers and potential shedders of Aujeszky’s disease virus

A

true

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124
Q

18) Swine are immunized against the Aujeszky’s disease virus usually with gE negative marker vaccines

A

true

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125
Q

19) Rats are the reservoir hosts of the Aujeszky’s disease

A

false

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126
Q

20) The Suid herpesvirus 1 frequently causes encephalitis in humans

A

false

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127
Q

21) Liquid manure may play a role in the transmission of Suid herpesvirus 1 from swine to cattle

A

true

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128
Q

22) Discriminative ELISA tests may differentiate between vaccinated swine wild type Suid- herpesvirus infected ones

A

true

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129
Q

23) In adult swine the most frequent manifestation of Aujeszky’s disease is encephalitis

A

false

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130
Q

24) Aujeszky’s disease virus infection in adult pigs is frequently subclinical

A

true

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131
Q

25) Pigs infected with wild type Aujeszky’s disease virus can be differentiated from vaccinated ones by serological tests (i.e ELISA).

A

true

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132
Q

26) Cattle should be vaccinated against Malignant Catarrhal Fever

A

false

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133
Q

27) Aujeszky ́s disease can occur in pigs and cats

A

true

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134
Q

28) Aujeszky ́s disease in pigs causes viraemia

A

true

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135
Q

29) Aujeszky ́s disease in cats spreads along the nerves

A

true

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136
Q

30) Aujeszky ́s disease can cause respiratory signs in adult pigs

A

true

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137
Q

31) Aujeszky ́s disease causes fever in day old piglets

A

true

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138
Q

32) Aujeszky`s disease causes pneumonia in susceptible piglets

A

false

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139
Q

33) Aujeszky`s disease doesn’t cause clinical signs in susceptible piglets

A

false

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140
Q

34) Aujeszky`s disease causes pruritus in susceptible piglets.

A

false

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141
Q

35) Aujeszky`s disease causes 20-30% mortality in susceptible piglets.

A

false

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142
Q

36) Older pigs are more frequently affected by Aujeszky ́s

A

false

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143
Q

1) Equine rhinopneumonitis virus is transmitted by arthropods

A

false

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144
Q

2) For immunisation against equine rhinopneumonitis virus mostly marker vaccines are used

A

false

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145
Q

3) Equine rhinopneumonitis virus can cause abortion several weeks after acute infection.

A

true

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146
Q

4) Equine rhinopneumonitis virus causes cytoplasmic inclusion bodies in the foetal hepatocytes

A

false

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147
Q

5) Equid herpesvirus 4 more frequently causes encephalitis than Equid herpesvirus 1

A

false

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148
Q

6) Horses should be vaccinated against equine rhinopneumonitis virus at least every 6 months

A

true, should be false

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149
Q

7) Equine rhinopneumonitis virus causes necrotic foci in the liver of the foetus

A

true

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150
Q

8) Fever and serous nasal discharge are early signs of acute equine rhinopneumonitis

A

true

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151
Q

9) Equine rhinopneumonitis virus can cause purulent metritis

A

false

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152
Q

10) Only equine herpesvirus 4 can cause abortion

A

false

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153
Q

11) Pregnant mares abort usually in the acute phase of equine rhinopneumonitis

A

false

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154
Q

12) After EHV1 infection pregnant mares abort in the acute febrile stage

A

false

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155
Q

13) Immunisation against equine rhinopneumonitis virus provides life long protection

A

false

156
Q

14) Equine rhinopneumonitis virus is present only in North America

A

false

157
Q

15) The equid herpesvirus 1 may cause abortion storms in studs

A

true

158
Q

16) Pregnant mares abort usually several weeks after equid herpesvirus 1 infection

A

true

159
Q

17) Vaccinated horses cannot get infected with Equid herpesvirus 1

A

false

160
Q

18) Equid herpesvirus 1 associated abortions are always sporadic

A

false

161
Q

19) Equid herpesvirus 1 may cause subclinical infection in horses

A

true

162
Q

20) Only pregnant mares should be immunized against Equid herpesvirus-1 infection.

A

false

163
Q

21) A single vaccination against Equid herpesvirus-1 provides life-long protection

A

false

164
Q

22) Equine rhinopneumonitis virus can cause only respiratory problems

A

false

165
Q

23) Both equid herpesvirus 1 and 4 can cause abortion

A

true, but ehv-4 abortions are rare

166
Q

24) For immunisation against Equine rhinopneumonitis virus mostly marker vaccines are used

A

false

167
Q

25) A single vaccination of a horse against EHV-1 induces protection for several years

A

false

168
Q

26) Equine herpesvirus-4 primarily causes abortion in horses

A

false

169
Q

27) Equine herpesvirus-4 causes mainly respiratory symptoms in horses.

A

true

170
Q

28) Equine herpesvirus-1 contains cross-reactive proteins against disease caused by EHV-4.

A

true

171
Q

29) Vaccination containing Equine herpesvirus-1 also provides protection against EHV-4.

A

false?

172
Q

30) Equine herpesvirus-1 primarily causes respiratory symptoms in horses

A

false, should be true

173
Q

31) Equine herpesvirus-1 primarily causes abortion

A

true, should be false, it mainly causes respiratory signs but also causes abortion

174
Q

32) One vaccination is enough to prevent Equine herpesvirus-1

A

false

175
Q

33) Mares infected with Equine herpesvirus-1 have a febrile state, then abort

A

true, should be false, they show no signs before abortion

176
Q

34) Horses should be vaccinated against Equine herpesvirus-1 every six months

A

false

177
Q

1) Equine herpesvirus 2 may cause keratoconjunctivitis

A

true

178
Q

2) Equine herpesvirus 2 can cause respiratory disease only in young foals

A

true

179
Q

3) Equid herpesvirus-2 may cause respiratory disease in foals

A

true

180
Q

4) Equid herpesvirus 5 may play a role in the equine multinodular pulmonary fibrosis.

A

true

181
Q

5) Equid herpesvirus 2 may cause keratoconjunctivitis in foals

A

true

182
Q

6) Equid herpesvirus 5 causes encephalitis in foals

A

false

183
Q

7) Equine herpesvirus-2 and 5 causes pustular vulvovaginitis

A

false

184
Q

8) Equid herpesvirus-2 may cause Coital Exanthemas in horse

A

false

185
Q

9) Equid herpesvirus-2 and 5 cause diarrhoea and hepatitis in foals

A

false

186
Q

10) In horses infected with Equine herpesvirus-2, the symptoms are often unnoticed

A

true

187
Q

11) Equine herpesvirus-2 in horses does not cause symptoms in adult animals

A

true

188
Q

12) It is enough to vaccinate mares 2 times against Equine herpesvirus-2.

A

false

189
Q

1) Equid herpesvirus 3 can cause lesions on the genital mucosa without abortion

A

true

190
Q

2) Equid herpesvirus 3 may cause coital exanthema in horses

A

true

191
Q

3) Abortion is frequent complication of coital exanthema in mares

A

false

192
Q

4) Herpesvirus 3 can be transmitted through mating

A

true

193
Q

5) Coital exanthema virus frequently causes abortion

A

false

194
Q

6) Coital Exanthema virus does not cause abortion

A

true

195
Q

7) Equine Coital Exanthema can cause abortion storms in studs

A

false

196
Q

8) Equine herpesvirus-3 cause abortion storms

A

false

197
Q

1) Canine herpesvirus infection can cause abortion

A

true

198
Q

2) Herpesvirus infection of adult dogs may result in reproductive disorders

A

true

199
Q

3) Canine herpesvirus infection frequently appears with flu like symptoms

A

true

200
Q

4) Feline herpesvirus infects dogs as well

A

false

201
Q

5) Liver lesions are frequently seen in puppies with Canid herpesvirus 1 infection

A

true

202
Q

6) Canine herpesvirus infection can cause blue eye disease

A

false

203
Q

7) Herpesvirus is frequently causing kennel cough

A

true

204
Q

8) Hypothermia and weak immune response facilitate the severity of canid herpes virus infection of dogs

A

true

205
Q

9) Latent canine herpesvirus infection can be activated in pregnant bitches

A

true

206
Q

10) Canine herpesvirus can cause transplacental infection

A

true

207
Q

11) Pregnant bitches can be immunised against canine herpesvirus with inactivated vaccine

A

true

208
Q

12) Herpes infection of pups 2-3 weeks old is fatal

A

true

209
Q

13) Canine Herpes virus may remain in latency for years in infected animals

A

true

210
Q

14) Canine herpesvirus 1 may contribute to the kennel cough syndrome

A

true

211
Q

15) Canid herpesvirus-1 may cause generalized infection and severe disease in young puppies

A

true

212
Q

16) Inactivated vaccines are available for immunization against Canid herpesvirus-1.

A

true

213
Q

17) Upper respiratory infection of Canid herpesvirus-1 may contribute to the kennel cough syndrome

A

true

214
Q

18) In utero infections with Canid herpesvirus may result in abortion

A

true

215
Q

19) Decreased body temperature has a negative effect on Canine herpesvirus infected animals

A

true

216
Q

20) Herpesvirus infection of dogs is most severe in 3-6 months old puppies

A

false

217
Q

21) Large dog kennels are usually seropositive for canine herpesvirus

A

true

218
Q

22) Canine herpesvirus infection can be deadly below 2-3 weeks of age

A

true

219
Q

1) Feline rhinotracheitis predisposes to pneumonia caused by Bordetella bronchiseptica

A

true

220
Q

2) Feline rhinotracheitis can cause foetal developmental anomalies in pregnant cats.

A

true

221
Q

3) Felid herpesvirus does not cause viraemia and abortion.

A

false

222
Q

4) Abortion is uncommon in feline rhinotracheitis of pregnant animals

A

false

223
Q

5) Abortion is rare in rhinotracheitis infected pregnant cats

A

false

224
Q

6) Sneezing is a typical sign of feline infectious rhinotracheitis

A

true

225
Q

7) Feline herpesvirus does not cause respiratory signs, only viraemia and abortion

A

false

226
Q

8) Conjunctivitis is a frequent sign of feline rhinotracheitis

A

true

227
Q

9) Conjunctivitis and muco-purulent nasal discharge are frequent signs of feline rhinotracheitis

A

true

228
Q

10) Clinical signs of feline infectious rhinotracheitis are similar to those of calicivirus

A

true

229
Q

11) Feline infectious rhinotracheitis often results high mortality in susceptible young kittens.

A

true

230
Q

12) Feline infectious rhinotracheitis often results in abortion of pregnant queens

A

true

231
Q

13) Felid herpesvirus 1 spreads slowly in cat populations

A

false

232
Q

14) Feline infectious rhinotracheitis is characterized by inflammation of the upper respiratory tract

A

true

233
Q

15) Crowded area, poor general condition and stress contribute significantly to the development of feline infectious rhinotracheitis

A

true

234
Q

16) Prolonged contact is usually needed for successful transmission of feline infectious rhinotracheitis

A

true

235
Q

17) Feline infectious rhinotracheitis can be treated with specific hyperimmune sera

A

true

236
Q

18) Ulcerations of the oral mucosa are frequent signs of Feline Rhinotracheitis

A

false

237
Q

19) Feline Infectious Rhinotracheitis occurs in summer because Felid herpesvirus-1 is transmitted by mosquitoes

A

false

238
Q

20) Feline herpesvirus-1 is mainly transmitted by mosquitoes.

A

false

239
Q

21) Felid herpesvirus-1 is moderately contagious: spreads slowly in cat populations

A

false

240
Q

22) Feline Infectious Rhinotracheitis virus is transmitted mainly through the air

A

false

241
Q

23) The Feline Infectious Rhinotracheitis virus is very contagious to cats

A

true

242
Q

24) Mucous is a frequent sign of Feline Infectious Rhinotracheitis

A

true

243
Q

1) The infectious laryngotracheitis is seen only in young chickens

A

false

244
Q

2) Diarrhoea is frequent in infectious laryngotracheitis of chickens

A

false

245
Q

3) Infectious laryngotracheitis virus strains may differ in virulence

A

true

246
Q

4) Encephalitis is a frequent complication in Infectious Laryngotracheitis of chickens

A

false

247
Q

5) Ducks are the most susceptible to infectious laryngotracheitis virus

A

false

248
Q

6) The infectious laryngotracheitis causes pseudomembrane formation in the oesophagus

A

true, should be false, produces pseudomembrane in trachea

249
Q

7) Chickens above 6 weeks of age are not susceptible to infectious laryngotracheitis

A

false

250
Q

8) The infectious laryngotracheitis can cause viraemia and pneumonia in young

A

false

251
Q

9) Conjunctivitis is a frequent sign of infectious laryngotracheitis

A

true

252
Q

10) Infectious laryngotracheitis virus is typically transmitted by the germinative route

A

false

253
Q

11) Infectious laryngotracheitis can be deadly in chickens

A

true

254
Q

12) Infectious laryngotracheitis is most frequently seen in day-old chickens

A

false

255
Q

13) Infectious laryngotracheitis virus is shed mainly with faeces

A

false

256
Q

14) Infectious Laryngotracheitis virus replicates in the liver of cats

A

false

257
Q

15) Infectious Laryngotracheitis virus replicates in the upper respiratory tract

A

true

258
Q

16) Germinative route is the most important factor in the transmission of the Infectious Laryngotracheitis virus

A

false

259
Q

17) Tracheal lesions of Infectious Laryngotracheitis may be similar to those of fowl pox.

A

true

260
Q

18) The Infectious Laryngotracheitis virus does not cause viraemia

A

true

261
Q

19) Infectious Laryngotracheitis is most frequently seen in day-old turkey.

A

false

262
Q

20) Infectious Laryngotracheitis virus is present worldwide

A

true

263
Q

21) Infectious Laryngotracheitis usually occurs clinically under 6 weeks of age

A

false

264
Q

22) Infectious Laryngotracheitis causes changes in the larynx and upper airways

A

true

265
Q

23) Infectious Laryngotracheitis virus invades the kidneys after viraemia

A

false

266
Q

24) Infectious Laryngotracheitis of poultry spreads germinatively

A

false

267
Q

25) Infectious Laryngotracheitis also occur in Hungary.

A

true

268
Q

26) Infectious Laryngotracheitis causes eggshell deformation

A

false

269
Q

27) Infectious Laryngotracheitis frequently damages the oviduct of hen.

A

false

270
Q

28) Infectious Laryngotracheitis can be deadly in chickens

A

true

271
Q

29) Mortality of infectious laryngotracheitis can go up to 50%.

A

true

272
Q

1) In case of viraemia the GaHV2 spreads to fowl’s organs in macrophages

A

true

273
Q

2) Transient paralysis form of Marek’s disease can be present in 6-week-old chicken

A

true

274
Q

3) Infection of Marek’s disease can occur in hatchery

A

true

275
Q

4) The vaccines of Marek’s disease are not efficient

A

false

276
Q

5) The turkey herpesvirus causes cross immunity against Marek’s disease.

A

true

277
Q

6) Turkey Herpes virus can be used for vaccination against Marek Disease

A

true

278
Q

7) Lymphoproliferative form of Marek’s disease can be present in 6-week-old chicken.

A

true

279
Q

8) Lymphoproliferative form of Marek’s disease can be present in hens (older age)

A

false

280
Q

9) Clinical signs of Marek’s disease present rare, because of vaccination

A

true

281
Q

10) Lymphoproliferative form of Mareks disease is a chronic disease

A

false

282
Q

11) The duck herpesvirus causes cross immunity against Marek disease

A

false

283
Q

12) The free virions spread to organs independent of cells in the case of Marek disease

A

false

284
Q

13) Transient paralysis form of Mareks disease can be present in hens

A

false

285
Q

14) Lymphoproliferative form of Mareks disease is an acute disease

A

true

286
Q

15) Neurological form of Mareks disease can be present in 4 week old chicken

A

false

287
Q

16) There is in ovo vaccine against Mareks disease

A

true

288
Q

17) Intake of GaHV2 happens most frequently per os

A

false

289
Q

18) Germinative infection does not occur in Mareks disease

A

true

290
Q

19) Germinative infection does occur in Mareks disease

A

false

291
Q

20) In case of viraemia the GaHV2 spreads to fowl’s organs in red blood cells

A

false

292
Q

21) The acute form of Mareks is primarily a tumour formation

A

true

293
Q

22) Marek disease is usually seen in chickens below 2 weeks of age

A

false

294
Q

23) Marek disease virus is shed with faeces in high titres

A

false

295
Q

24) Signs of Marek disease may be very similar to reticuloendotheliosis signs

A

true

296
Q

25) The Marek disease virus survives for long in the environment

A

true

297
Q

26) Marek disease is caused by turkey herpesvirus

A

false

298
Q

27) Transient Marek paralysis may lead to visceral form

A

true

299
Q

28) Transient paralysis by Marek’s disease usually ends in full recovery

A

false

300
Q

29) The chronic form of Marek disease is characterized by neurological disorders

A

true

301
Q

30) The chronic form of Marek disease is due to circuses of higher virulence

A

false

302
Q

31) Marek disease is the result of air born infection

A

true

303
Q

32) Marek disease usually starts as an airborne infection

A

true

304
Q

33) Free Marek virus particles are shed from the feather follicles

A

true

305
Q

34) The Marek’s disease virus may survive in the environment for several months

A

true

306
Q

35) Marek’s disease is most frequently seen in geese and ducks

A

false

307
Q

36) Free virions of the Marek’s disease virus are formed in the feather follicle epithelial cells.

A

true

308
Q

37) Humoral immunity plays the central role in the host’s defence against the Marek’s disease virus

A

false

309
Q

38) The neurological form of the Marek’s disease is seen only in day-old chicks.

A

false

310
Q

39) Chicken shed the Marek’s disease virus via feather follicular epithelial cells

A

true

311
Q

40) The pathological lesions of acute Marek’s disease and reticuloendotheliosis can be similar.

A

true

312
Q

41) Conjunctivitis is a frequent sign of acute Marek’s disease

A

false

313
Q

42) The Marek ́s disease virus is transmitted by inhalation.

A

true

314
Q

43) Marek ́s disease virus can ́t be prevented by vaccination, because it ́s immunosuppressive

A

false

315
Q

44) The pathology lesions of acute Marek ́s disease and avian leucosis can be similar

A

true

316
Q

45) The Marek ́s disease virus causes immunosuppression

A

true

317
Q

46) The acute form of Marek ́s disease is characterized by lymphoid cell proliferation

A

true

318
Q

47) The neurological form of Marek ́s disease has a mass appearance

A

false

319
Q

48) The highly virulent strains of Marek ́s disease may cause tumours in turkey

A

true

320
Q

49) The incubation time of acute Marek ́s disease is 1-2 days

A

false

321
Q

50) The neurological form of Marek ́s disease leads to significant liver degeneration

A

false

322
Q

51) Both serotypes of the Marek ́s virus cause disease in geese

A

false

323
Q

52) North America is free of Marek ́s disease

A

false

324
Q

53) Marek’s disease only occurs in domestic fowl

A

true

325
Q

54) Marek’s disease spreads primarily via the aerogenous route

A

true

326
Q

55) Marek’s disease virus is shed mainly via the faeces

A

false

327
Q

56) Marek ́s disease in the blood multiplies in the endothelial cells

A

false

328
Q

57) Marek ́s disease is a beta herpes virus

A

false

329
Q

58) Marek’s disease primarily targets day old chickens

A

false

330
Q

59) The neoplastic form of Marek disease is caused by high virulence strains.

A

true

331
Q

60) Vaccination is used for the prevention of Marek ́s disease

A

true

332
Q

61) The neoplastic form of Marek’s is caused by low virulence strains

A

false

333
Q

62) We can differentiate Marek’s disease from reticuloendotheliosis only by lab diagnostics methods

A

true

334
Q

63) Prevention against Marek ́s: no measures needed as the disease remains mostly symptomless

A

false

335
Q

64) General preventative measures and vaccination of day-old chickens must be used for the prevention of Marek’s disease

A

true

336
Q

live attenuated strains are used for vaccination against Marek ́s disease

A

true

337
Q

66) No vaccination is needed against Marek’s disease.

A

false

338
Q

67) The highly virulent strains of Marek’s disease may cause tumors in turkeys.

A

true

339
Q

68) Marek’s disease viruses are uniform in their virulence

A

false

340
Q

69) Highly virulent Marek’s disease viruses may break through vaccine induced protection

A

true

341
Q

1) Conjunctivitis is a frequent sign of duck viral enteritis

A

true

342
Q

2) Only sporadic clinical cases of duck viral enteritis are seen in an affected flock

A

false

343
Q

3) Mallards may transmit the duck enteritis virus to domestic ducks kept on lakes

A

true

344
Q

4) Liver dystrophy is a frequent lesion of duck viral enteritis (duck plague)

A

true

345
Q

5) Wild ducks may be persistently infected with duck plague (duck enteritis) virus

A

true

346
Q

6) Duck plague virus may be shed life long by animals recovered from the disease

A

true

347
Q

7) Duck plague (viral enteritis) can’t cause high mortality without secondary bacterial infection

A

false

348
Q

8) Duck plaque and duck viral enteritis are two names of the same disease

A

true

349
Q

9) Duck viral enteritis is seldom fatal

A

false

350
Q

10) Treatment is the most effective control method for duck viral enteritis

A

false

351
Q

11) Duck plague is more severe in wild birds than in domestic ducks

A

false

352
Q

12) Duck plague virus damages blood vessel endothelium

A

true

353
Q

13) Duck plague only affects young ducklings

A

false

354
Q

14) Duck plague is only seen in day old ducklings

A

false

355
Q

15) Duck viral enteritis is usually mild, osmotic diarrhoea

A

false

356
Q

16) Duck plague infects exclusively domestic and wild ducks

A

false

357
Q

17) Antibiotic treatment is the most effective control method for Duck Viral Enteritis

A

false

358
Q

18) Beak deformity is a typical sign of Duck Plague.

A

false

359
Q

19) Muscovy duck are resistant to the Duck Viral Enteritis

A

false

360
Q

20) Duck Plague/Duck viral Enteritis cause high mortality in all ages.

A

false

361
Q

21) Duck Plague/Duck viral Enteritis clinical signs in young ducks are only seen in birds up to 4 weeks of age

A

false

362
Q

22) Vaccines containing a live attenuated strain can be used for prevention against Duck Plague

A

true

363
Q

23) Duck Plague/Duck viral Enteritis vaccination is not needed as clinical signs are mild

A

false

364
Q

24) Duck Plague virus can “settle” in wild ducks

A

true

365
Q

25) Duck Plague is an outbreak of Avian influenza in ducks, with a host-adapted version of the virus

A

false

366
Q

26) Duck Plague only causes hepatitis in young ducks

A

false

367
Q

27) Duck Plague only causes disease in ducks and geese

A

false

368
Q

28) Duck Plague virus causes high mortality in both old and young birds

A

false

369
Q

29) Duck Plague also affects geese

A

true

370
Q

30) Duck Plague is a disease of young ducks only

A

false

371
Q

31) Duck Viral Enteritis can affect all age groups

A

true

372
Q

32) Depression, respiratory signs and bloody diarrhoea are main signs of Duck Plague.

A

true

373
Q

33) In most cases the Duck Plague disease remain symptomless

A

false

374
Q

34) Duck Plague is more severe in wild birds than domestic ducks

A

false

375
Q

1) Pigeon herpesvirus mainly causes encephalitis in adult pigeons.

A

false

376
Q

2) Pigeon herpesvirus infections usually result a haemorrhagic deadly disease

A

false

377
Q

3) Pigeon herpesvirus is characterised by focal necrosis in the liver in pigeons

A

true

378
Q

4) Pigeon herpesvirus kills mostly day old pigeons

A

false

379
Q

5) Pigeon herpesvirus infection causes feather development problems

A

false

380
Q

6) Pigeon herpesvirus infections mainly affect young pigeons.

A

true

381
Q

7) Pigeon herpesvirus mainly causes encephalitis in adult pigeons

A

false

382
Q

8) Pigeon herpesvirus infection is frequently combined with adenovirus and circovirus infection

A

true

383
Q

9) Pigeon herpesvirus may cause respiratory disease in young pigeons

A

true

384
Q

10) Pigeon herpesvirus causes conjunctivitis, rhinitis, pharyngitis and diarrhoea in the acute stage.

A

true

385
Q

11) Pigeon herpesvirus infection is related to Marek’s disease

A

true

386
Q

12) Pigeon herpesvirus has the highest mortality in day-old pigeons.

A

false

387
Q

13) Diarrhoea and nasal discharge are common in Pigeon herpesvirus infections

A

true

Epi (74 decks)

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