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Virology > Nidovirales: Arteriviridae > Flashcards

Nidovirales: Arteriviridae Flashcards

1
Q

What does Arteriviridae mean?

A

Arteritis

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2
Q

Morphology

A
  • +ssRNA genome
  • ~60nm icosahedral capsid
  • enveloped – 70nm
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3
Q

Resistance

A

weak

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4
Q

Biological properties

A

Baltimore IV., subgenomic mRNA synthesis

CPE: not typical or no

Transmission: sexual route, aerogen, contact

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5
Q

Antigenic properties

A
  • good antigens

* no cross reactions

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6
Q

Diagnosis

A

clinical signs, isolation (difficult) histopathology,
IF
RT-PCR
indirect: VN, ELISA

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7
Q

Genus

A

Arterivirus genus

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8
Q

Arterivirus genus

A

Equine arteritis virus (EAV)
•arteritis – edema, ABORTION, respiratory signs
•stallions may become persistently infected
•carry the virus in the genital tract
•shed the virus by the semen

Porcine reproductive and respiratory syndrome (PRRS)
•(Swine infertility and respiratory syndrome – SIRS)
•early abortion – infertility
•respiratory signs – cyanosis (blue ear)

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Virology (29 decks)

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