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AA4 Virology > Circoviridae-Poxviridae > Flashcards

Circoviridae-Poxviridae Flashcards

1
Q

affects young birds worldwide, resulting to aplastic anaemia and generalized lymphoid atrophy

A

CAV

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2
Q

etiologic agent of PMWS and PDNS

A

porcine parvovirus

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3
Q

major cause SMEDI syndrome

A

porcine parvovirus

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4
Q

spread slowly, cause enlargement of infected cells, hence their common name cytomegaloviruses

A

betaherpesviruses

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5
Q

establish latent infections in lymphocytes

A

gammaherpesvirus

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6
Q

transmission of herpesviruses

A

respiratory and genital secretions

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7
Q

an important cause of reproductive failure in pigs

A

porcine parvovirus

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8
Q

etiologic agent of Infectious bovine rhinotracheitis

A

bovine herpesvirus 1

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9
Q

etiologic agent of malignant catarrhal fever in cattle

A

ovine herpesvirus 2, alcelaphine herpesvirus 1

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10
Q

Causes Aujeszkys disease in pigs

A

porcine herpesvirus 1

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11
Q

causative agent for inclusion body rhinitis in pigs

A

porcine herpesvirus 2

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12
Q

Causes ulcerative mammillitis in temperate regions and pseudo lumpy skin disease in tropical and subtropical regions

A

bovine herpesvirus 2

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13
Q

which herpesvirus can cause neurological disease in horses worldwide

A

equine herpervirus 1

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14
Q

pathogenesis of feline herpesvirus 1

A

viral rhinotracheitis

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15
Q

aetiologically implicated in equinesarcoids

A

Bovine papillomavirus 1

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16
Q

rapid spread, establishing latent infections in neurons located in sensory ganglia

A

alphaherpesviruses

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17
Q

BPV 1 in cattle main target sites

A

head, neck, penis

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18
Q

which herpesvirus cause rhinopneumonitis in young horses and sporadic abortion

A

equine herpesvirus 4

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19
Q

BPV 2 pathogenesis

A

bladder neoplasia, enzootic hematuria

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20
Q

Causes encephalitis in calves

A

bovine herpesvirus 5

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21
Q

cause rice grain type of papilloma in teats and udder of cattle

A

BPV 5

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22
Q

equine papillomavirus 1 mainly cause these areas

A

lips and nose

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23
Q

etiologic agent for ICH

A

canine adenovirus 1

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24
Q

etiologic agent for mild venereal infection or coital exanthema

A

equine herpesvirus 3

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25
Q

involved in infectious tracheobronchitis or kennel cough

A

CAV 2

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26
Q

cause frond type of papilloma in the teats of the cow

A

BPV6

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27
Q

pathogenesis of avian adenovirus

A

IBH, egg drop syndrome

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28
Q

virus associated with quial bronchitis, inclusion body hepatitis and hepatitis hydropericardium syndrome

A

fowl adenoviruses

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29
Q

virus with complex symmetry

A

Poxviridae

30
Q

poxvirus of insects

A

Entomopoxvirinae

31
Q

poxvirus of vertebrates

A

chordopoxvirinae

32
Q

etiologic agent of mareks disease

A

gallid herpesvirus 2

33
Q

principal incidental hosts of cowpox virus

A

cats

34
Q

pathogenesis of camelpoxvirus

A

systemic infection with typical fox exanthema

35
Q

egg drop syndrome in laying hens

A

duck adenovirus A

36
Q

causes milkers nodules

A

pseudocowpox virus

37
Q

what are the four poxviruses transmissible to humans

A

Cowpox, Pseudocowpox, BPSV, Orf virus

38
Q

which virus cause marble spleen disease
in pheasants

A

turkey adenovirus

39
Q

lumpy skin disease of genus Capripoxvirus is endemic in which country

A

Africa

40
Q

cause mild skin disease transmitted by pig louse known as Haematopinus suis

A

swinepox virus

41
Q

2 forms of fowl pox virus

A

Cutaneous and diphtheritic form

42
Q

fowlpox is transmitted by

A

biting arthropods

43
Q

Used as recombinant virus vector vaccine for rabies

A

vaccinia virus

44
Q

used for biological control of rabbits in several countries

A

myxoma virus

45
Q

demonstration of these inclusion bodies during histology examination of cytoplasm is confirmatory for fowl pox

A

Bollinger bodies and borrel bodies

46
Q

main organs affected by pox virus

A

upper digestive and respiratory tracts

47
Q

incubation period of orf virus

A

4 to 7 days

48
Q

what are the suitable samples for diagnosis of ASFV

A

blood, serum, tonsil, kidney, spleen and lymph nodes

49
Q

chronic cases of ASF is largely confined to

A

respiratory tract

50
Q

other names of orf virus

A

contagious pustular dermatitis, contagious ecthyma virus

51
Q

where does ASF virus initially replicate before spreading to draining lymph nodes

A

pharyngeal mucuos membrane, tonsils

52
Q

prominent feature of pox virus infections

A

skin lesions

53
Q

incubation period of ASF virus

A

4 to 19 days, 5 to 7 in acute cases

54
Q

important mechanism of spread of ASF internationally

A

feeding uncooked swill

55
Q

first ASF outbreak in the Philippines date and location

A

Rizal province, July 25, 2019

56
Q

lesions of orf virus is seen not only lips and muzzle but also in these parts of the body

A

feet, genitalia, teats

57
Q

these mammalian hepadnaviruses are 60 percent genetically identical

A

Hepatitis B and Woodchuck Hepatitis virus

58
Q

when was ASF detected in cured pork items in the PH

A

Oct. 24, 2019

59
Q

hepadnavirus pathogenic to humans

A

Hepatitis B virus

60
Q

ASF primary replication sites

A

lymphoreticular system

61
Q

disinfectant which can destroy infectivity of ASF

A

paraphenylphenolic

62
Q

pathogenesis of the haemorrhages of ASF appears to be largely related to the development of

A

DIC, destruction of megakaryocytes

63
Q

These viruses differ from other DNA viruses by synthesizing their DNA by copying RNA using reverse transcriptase

A

Hepadnaviruses

64
Q

Give the 3 enveloped DNA viruses of veterinary importance

A

Herpesviridae, Asfarviridae, Poxviridae

65
Q

What are the 2 enveloped, icosahedral DNA viruses?

A

Asfarviridae, Herpesviridae

66
Q

Give the two double stranded DNA viruses of veterinary importance

A

Papovaviridae, Adenoviridae

67
Q

Control of porcine circovirus

A

Biosecurity, vaccine, passive immunity from vaccine to piglets

68
Q

Which of the DNA viruses are labile in the environment?

A

Herpesviridae

69
Q

Transmission of herpesvirus

A
  1. aerosol
  2. semen (natural or AI)
  3. aborted fetus
70
Q

clinical condition caused by feline herpesvirus 1

A

viral rhinotracheitis

71
Q

virus may cause malignant transformation after ingestion of bracken fern

A

BPV 4

72
Q
A

AA4 Virology (4 decks)

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