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Virology Final > Reoviridae > Flashcards

Reoviridae Flashcards

1
Q

Reoviridae (meaning)

A

Respiratory Enteritic Orphan

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2
Q

Subfamilies

A

Spinareovirinae

Sedoreovirinae

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3
Q

Spinareovirinae genera

A

Orthoreo

Colti

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4
Q

Sedoreovirinae genera

A

Orbi
Rota
Seadorna

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5
Q

Morphology

A

segmented (10-12) dsRNA
icosahedral, double capsid
non enveloped

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6
Q

Resistance

A

Orthoreo, Rota: strong (56°C, pH 3)

Orbi, Colti: weaker

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7
Q

Biological properties

A

viral transcriptase
Orbi, Rota: in vitro difficult to propagate
Orthoreo: cytoplasmic inclusion bodies, rounding
Orbi, Colti – arboviruses (mosquitoes, ticks)

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8
Q

Antigenic properties

A

good antigens – cross reactions +/-

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9
Q

Diagnosis

A

isolation, experimental animals (Orbi)

IF, ccIEF, IEM (Rota)

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10
Q

Spinareovirinae (morphology)

A

spikes on the surface of the virions

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11
Q

Orthoreovirus genus (spp)

A

Mammalian reoviruses

Avian reoviruses

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12
Q

Mammalian reoviruses (clin signs)

A

pneumoenteritis

euryxen: calves, lambs, foals, dogs, humans, etc.

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13
Q

Mammalian reoviruses (A sp)

A

calves, lambs, foals, dogs, humans

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14
Q

Avian reoviruses (clin signs)

A

tenosynovitis

ranting-stunting syndrome, PEMS, „helicopter disease”

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15
Q

Sedoreovirinae (genera)

A

Orbivirus genus

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16
Q

Orbivirus genus (meaning)

A

orbi=circle

17
Q

Orbivirus genus (dis)

A 
African horse sickness 
Bluetongue
Ibaraki disease
Epizootic hemmorhagic disease
Equine encephalosis
18
Q

African horse sickness

A

Oedema, hemorrhage, pneumonia

19
Q

Bluetongue

A

abortion, cyanosis, oedema

sheep and cattle

20
Q

Ibaraki disease

A

cattle
abortion
Asia

21
Q

Epizootic hemorrhagic disease

A

deer

North America

22
Q

Rotavirus genus (meaning)

A

Rota=wheel

23
Q

Rotavirus genus (spp)

A

A, B, C, D, and E species

24
Q

Rotavirus genus (dis + A spp)

A 
neonatal enteritis (+ E. coli) 
calves, piglets, children
25
Q

Seadornavirus genus (meaning)

A

South eastern Asia dodeca RNA virus

26
Q

Seadarnavirus genus (spp)

A

Banna virus
Kadipiro virus
Liao Ning virus

27
Q

Seadarnavirus genus (dis)

A

human – influenza-like illness, encephalitis

zoononotic?

Virology Final (18 decks)

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