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MY Virology FINAL > Paramyxoviridae > Flashcards

Paramyxoviridae Flashcards

1
Q

Paramoxyviridae are ____ viruses in the environment

A

fragile

*don’t last long in environment

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2
Q

Most paramyoxviruses produce eosinophilic intracytoplasmic inclusion bodies, However _____ produces eosinophilic intranuclear inclusion bodies

A

Morbilivirus

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3
Q

Paramyxoviruses are ____ meaning they can assume different morphologial shapes

A

pleomorphic

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4
Q

What protein of Paramyxovirus contains the spike proteins and elicits neutralizing antibodies?

A

Hemagglutinin

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5
Q

What protein elicits neutralizing antibodies that prevent fusion of envelope with host cell membrane?

A

Fusion Protein

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6
Q

Every member of the family Paramyxoviridae causes _____

A

respiratory tract infection

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7
Q

What is the etiological agent of Bovine Parainfluenza Virus 3 disease?

A

Bovine Parainfluenza virus 3

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8
Q

Bovine Parainfluenza virus 3 belongs to genus ____

A

Respirovirus

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9
Q

Bovine parainfluenza virus 3 contributes to ____ fever

A

shipping

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10
Q

What is the etiological agent of Newcastle disease?

A

Avian paramyxovirus 1

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11
Q

What genus does Newcastle disease belong to?

A

Avulavirus

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12
Q

What are the hosts of Newcastle disease?

A

domestic and pet birds

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13
Q

Is there a vaccine for Newcastle disease?

A

Yes

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14
Q

Which species of bird is highly susceptible to Newcastle disease?

A

pigeons

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15
Q

What are the 3 strains of Newcastle disease and how virulent are they?

A

Velogenic- highly virulent

Mesogenic- moderatly virulent

Lentogenic- avirulent, used for vaccine

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16
Q

What are the two subtypes of disease in the Velogenic form?

A

Viscerotropic- hemmorhages

Neurotropic- respiratory and CNS system

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17
Q

What organ systems are affected by Newcastle disease?

A

Respiratory

Ailmentary

CNS

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18
Q

Is Newcastle disease reportable?

A

Yes

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19
Q

How is Newcastle disease controlled?

A

Quarantine and depopulation

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20
Q

What genus does Canine parainfluenza virus 5 belong to?

A

Rubulavirus

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21
Q

What does Canine parainfluenza virus 5 cause in dogs?

A

kennel cough

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22
Q

What kind of inclusion bodies does morbillivirus have?

A

eosinophilic intranuclear and intracytoplasmic inclusion bodies

23
Q

True/False: Morbillivirus hemagglutinate red blood cells

A

FALSE!

*do not hemogglutinate red blood cells

24
Q

What genus does Canine distemper belong to?

A

Morbillivirus

25
Q

Which dogs get canine distemper?

A

unvaccinated!!

26
Q

What is another name for canine distemper?

A

hard pad disease

*hyperkeratosis of foot pads and nose

27
Q

What animals are hosts to canine distemper?

A

dogs

bears

pandas

ferrets

28
Q

What is the etiological agent of Canine distemper

A

Canine Morbillivirus

29
Q

What are the neurotropic strains of canine distemper?

A

Snyder hill

R252

A75/17

30
Q

How is canine distemper transmitted?

A

inhalation of aerosolized droplets

31
Q

Canine distemper also multiplies in and kills lymphocytes leading to secondary ____

A

immunosuppression

32
Q

What cells does canine distemper multiply in?

A

macrophages

epithelial cells

T and B lymphocytes

nervous tissue

33
Q

If the anitibody titer is ____ or higher then there will be no disease

A

[1:100]

34
Q

____ encephalitis occurs when the viruses persists in the brain and causes neurological signs more than 24 months after infection of canine distemper

A

old dog encephalitis

*100% mortality

35
Q

Is there a vaccine for canine distemper?

A

yes

36
Q

What is another name for Peste des Petits Ruminants

A

Goat plague

37
Q

What is the etiological agent for Peste des Petits Ruminants?

A

Caprine Morbillivirus

38
Q

What hosts does Peste des petits Ruminants infect?

A

Goats mainly

39
Q

How is Peste des petitis ruminants transmitted?

A

inhalation mainly

40
Q

In peste des Petits ruminants, the virus shedding ___ appearance of clinial signs

A

precedes

41
Q

Peste des petits ruminants is 100% deadly in ___

A

goats

42
Q

What pathogenesis occurs in peste des petits ruminants?

A

diarrhea

pneumonia

ulcers

lymphopenia

43
Q

Is there a vaccine for Peste des petits ruminants?

A

Yes

*also a reportable disease

44
Q

What genus does Bovine respiratory syncytial disease belong to?

A

Pneumovirus

45
Q

Bovine respiratory syncytial disease causes severe respiratory tract disease in what hosts?

A

cattle and sheep

46
Q

Bovine respiratory syncytial disease is very ___ in environment

A

fragile

47
Q

What is the etiological agent in bovine respiratory syncytial disease?

A

Bovine pneumovirus

48
Q

True/False: bovine respiratory syncytial disease can survive freezing

A

False

*specimen should not be frozen

49
Q

Bovine respiratory syncytial disease immunity is ____

A

short lived

50
Q

Do we vaccinate for bovine respiratory syncytial disease?

A

Yes

51
Q

Bovine respiratory syncytial disease is part of ____ fever complex

A

shipping

52
Q

True/False: Bovine respiratory syncytial disease is very deadly

A

false

*very low mortality

53
Q

Bovine respiratory syncytial disease is only deady due to ____

A

2nd bacterial infection

MY Virology FINAL (12 decks)

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