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AA4 Virology > Paramyxoviridae & Filoviridae > Flashcards

Paramyxoviridae & Filoviridae Flashcards

1
Q

The World of Animal Health aims to achieve to completely eradicate this disease affecting sheep and goats around the world by 2030

A

Pesti de petit ruminants (PPR)

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2
Q

True or False. PPR viruses have only one serotype, do not have carrier or reservoir aside from small ruminants.

A

True.

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3
Q

Causative agent of Newcastle disease

A

APMV 1

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4
Q

Give 2 OIE listed dss from Genus Morbillivirus

A
  1. Peste-des-petits-ruminants virus
  2. Rinderpest virus
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5
Q

Give 5 OIE listed disease from Family Paramyxoviridae

A
  1. NDV
  2. Hendra virus
  3. Nipah virus
  4. PPR
  5. Rinderpest
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6
Q

Which genus of family paramyxoviridae does not have hemagglutinin protein antigenic property?

A

Pneumovirus

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7
Q

Which genus of family Paramyxoviridae do not gave neuraminidase protein antigenic property?

A

Morbillivirus, Pneumovirus

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8
Q

network of rbc’s and viruses formed due to HA protein

A

Hemagglutination

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9
Q

occurs when virus detaches from rbc’s due to neuraminadase (NA) protein enzymes by breaking the contact of rbc and HA protein

A

Elution

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10
Q

True or False. Paramyxoviridae are monotypic, which means , antibodies against one virus strain can neutralize all strains of the same species

A

True.

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11
Q

highly contagious disease of chickens that is characterized by respiratory distress, diarrhea, and neurological signs

A

Newcastle disease

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12
Q

Give the other names for NDV

A

Ranikhet Disease, Pseudofowl Pest, Avian Pneumoencephalitis

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13
Q

Severity of the disease NDV is dependent upon?

A
  1. age and immune status of the birds
  2. the virulence of the ND virus
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14
Q

Proteins that are responsible for virus attachment to host cell and infection

A
  1. hemagglutinin
  2. neuraminidase
  3. fusion proteins
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15
Q

Which of the ND forms have high mortality and present hemorrhagic lesions in git?

A

Viscerotropic velogenic / Doyle’s form, Asiatic or Exotic ND

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16
Q

Which of the ND forms have high mortality, with respiratory & neurological disease?

A

neurotropic velogenic or beach’s form

17
Q

They are less susceptible to NDV but act as carriers.

A

Sea birds

18
Q

Zoonotic transmission of NDV occurs through?

A

Exposure of handlers to infected birds or live viral vaccines

19
Q

most common route for transmission of NDV

A

aerosol respiratory infection

20
Q

True or False. NDV is spread by fomites.

A

True.

21
Q

Give the lesions of the velogenic strains of NDV.

A
  1. swelling of the head
  2. petechiae on the mucosa of proventriculus
  3. ulceration of peyers patches
  4. edema of interstitial tissue of neck
22
Q

Samples to be collected on NDV infected live birds

A

a) Oro-nasal swab
b) Cloacal swab
c) Serum

23
Q

Vaccine for NDV is administered through?

A

drinking water, as aerosols

24
Q

A disease unique to Australia which killed number of horses and their trainer

A

hendra virus disease

25
Q

Reservoir hosts of Hendra virus

A

fruit bats

26
Q

these virus utilizes bats as reservoir hosts but excrete the virus through urine

A

Nipah viruses

27
Q

pathogenic effects of Nipah viruses to pigs

A

pneumonia & encephalitis

27
Q

Source of zoonotic transmission of Nipah virus in the Philippines

A

eating of undercooked carcass of sick horses

28
Q

drugs used in humans to reduce fatalities caused by Nipah viruses

A

ribavirin

29
Q

it is also known as Hard pad disease or Carre’s disease

A

Canine distemper virus disease

30
Q

2 stages of CD disease

A
  1. mucosal stage
  2. neurologic phase
31
Q

Recovered dogs from CD have shown this abnormalities

A

teeth abnormalities (enamel hypoplasia), hyperkeratosis

32
Q

CDV forms a viral triad with which other 2 viruses? Name them.

A
  1. Rinderpest virus
  2. Measles virus
33
Q

Lab test recommded by OIE for CDV confirmation

A

flourescence antibody test

34
Q

This is the first virus eradicated worldwide of veterinary importance

A

Rinderpest virus

35
Q

Give the other names of RP virus

A

CAttle plague, Contagious Bovine Typhus, Steppe Murein

36
Q

Natural hosts of RP virus

A

domesticated and wild even-toed ungulates

37
Q

route of entry of RP virus

A

inhalation

38
Q
A

AA4 Virology (4 decks)

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