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MY Virology FINAL > Picornaviridae > Flashcards

Picornaviridae Flashcards

1
Q

What is the smallest of the RNA viruses?

A

Picornavirdae

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2
Q

Picornaviridae is very ____ in the environment

A

stable

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3
Q

There is very little ____ between serotypes of Picornaviridae

A

cross protection

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4
Q

Picornaviridae are rapidly ____

A

cytolytic

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5
Q

True/False: Picornadviriae produce inclusion bodies

A

False

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6
Q

What is the causative agent of foot and mouth disease?

A

Aphthovirus

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7
Q

Foot and mouth disease is a ___ moving disease

A

very fast

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8
Q

What is the main pathogenesis with Foot and Mouth disease?

A

Ulcers

*of tongue, lips, feet ect

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9
Q

Is foot an mouth disease reportable?

A

YES!

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10
Q

What animals are the most susceptible to Foot and mouth disease?

A

Pigs and cattle

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11
Q

What animals is a huge cause of spread of Foot and Mouth disease?

A

swine

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12
Q

What animal is genetically resistant to Foot and mouth disease, but can still act as a mechanical vector?

A

Horses

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13
Q

In foot and mouth disease, virus can be excreted prior to the development of ____

A

clinical signs

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14
Q

Is there cross protection between the Foot and Mouth disease serotypes?

A

no

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15
Q

How is foot and mouth disease trasmitted?

A

ingestion or inhalation

*there is aerosol transmission

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16
Q

In Foot and Mouth disease, which animal does not have a carrier state?

A

swine!

*carrier state only in ruminants

17
Q

Foot and Mouth disease causes higher mortality in ____, because they have a higher chance of myocardial replication of the virus leading to heart attacks

A

neonates

18
Q

_____ can lead to abortion of a pregnant cow in Foot and Mouth disease

A

dehydration

19
Q

Animals with Foot and Mouth disease ____ profusely

A

salivate

20
Q

Do we vaccinate in Foot and Mouth disease?

A

Yes, but only in endemic areas

21
Q

How is Foot and Mouth disease controlled?

A

Quarantine and slaughter of all susceptible animals (cows and swine)

22
Q

True/False: Foot and Mouth disease is exotic in the US?

A

true

23
Q

Avian Encephalomyelitis is a disease of what hosts?

A

baby chicks

turkey poults

24
Q

What is the etiological agent in Avian Encephalomyelitis?

A

Avian Tremovirus

25
Q

Avian Encephalomyelitis cause a dramatic decrease in ____ production

A

egg

26
Q

What is the main clinical sign of Avian Encephalomyelitis?

A

tremors

birds will be constantly shaking

27
Q

What is the main mode of transmission in Avian Encephalomyelitis?

A

feca-oral

28
Q

Avian Encephalomyelitis is a ____ disease

A

CNS

29
Q

Do we vaccinate in Avian Encephalomyelitis?

A

Yes

Hens are vaccinated to pass immunity to chicks and poults

30
Q

What is the etiological agent of Encephalomyocarditis?

A

Cardiovirus

31
Q

Encephalomyeocarditis is a virus transmitted via _____ and mainly causing pathogeneis in _____

A

transmitted via rodents (*rodent virus)

swine

32
Q

How is Encephalomyocarditis transmitted?

A

rodent urine or feces in swine drinking water or feed

33
Q

Encephalomyocarditis has sudden onset and causes necrotic lesions in the ____ of pigs

A

myocardium

*sudden death- heart attacks

34
Q

How is Encephalomyocarditis controlled?

A

Rodent control

35
Q

Do we vaccinate in Encephalomyocarditis?

A

Yes

Vaccinate dams to pass immunity to piglets

MY Virology FINAL (12 decks)

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