Arena-, Bunya-, Borna- Flashcards

1
Q

Mononegavirales consists of…

A
  • Bornaviridae
  • Arenaviridae
  • Rhabdoviridae
  • Filoviridae
  • Paramyxoviridae
  • Bunyaviridae

(BARF PB)

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2
Q

Bunya-: Etymology

A

Bunyamwera: African region

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3
Q

Bunya-: Morphology

A
  • Segmented -ssRNA genome
  • Helical capsid
  • Enveloped
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4
Q

Bunya-: Resistance

A

Weak

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5
Q

Bunya-: Biological properties

A
  • Baltimore V - Viral transcriptase
  • Zoonotic
  • Rodent reservoir
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6
Q

Bunya-: Antigenic properties

A
  • Good antigens
  • Cross-reaction within genera
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7
Q

Bunya-: Diagnosis

A
  • Isolation
  • IF
  • VN
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8
Q

Bunya-: Genuses

A
  • Orthobunya-
  • Hanta-
  • Nairo-
  • Phlebo-
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9
Q

Orthobunya-: Examples

A
  • Akabane virus
  • Lacrosse virus*
  • Tahyna virus*
  • Inkoo virus*

*Human - Fever, rash, encephalitis

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10
Q

Phlebo-: Example

A

Rift valley fever virus

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11
Q

Nairo-: Examples

A
  • Nairobi sheep fever
  • Crimean-congo haemorrhagic fever
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12
Q

Hanta-: Example

A

Hantaan haemorrhagic fever with the renal syndrome

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13
Q

Arena-: Etymology

A

Arena-: Sand

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14
Q

Arena-: Morphology

A
  • Segmented -ssRNA genome
  • Øcapsid
  • Enveloped
  • Ribosomes inside
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15
Q

Arena-: Resistance

A

Weak

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16
Q

Arena-: Biological properties

A
  • Baltimore V - Viral transcriptase
  • Zoonotic
  • Rodent reservoir
17
Q

Arena-: Antigenic properties

A
  • Good antigens
  • Cross-reactions within the genus
18
Q

Arena-: Diagnosis

A
  • Isolation
  • IF
  • VN
  • IIF
19
Q

Arena-: Genuses

A
  • Old world
  • New world
20
Q

Arena-: Old world examples

A
  • Lymphocytic choriomeningitis virus
  • Lassa-, Mobala-, Mopeia-
21
Q

Arena-: New world example

A
  • Tacaribe-
  • Junin-
  • Machup-
22
Q

Rift valley fever virus

A

Sheep, cattle, zoonotic

  • Abortion
  • Fever
  • Blood
  • Diarrhoea

Mosquito transmitted

23
Q

Nairobi sheep fever

A

Sheep, goat

  • Fever
  • Abortion
  • High mortality

Tick transmitted

24
Q

Crimean-congo haemorrhagic fever

A

Humans

  • Haemorrhage
  • Rash
  • Nephritis
25
Q

Hantaan haemorrhagic fever

A

Human

  • Fever
  • Nephritis
  • High mortality

Rodent reservoir

26
Q

Lymphocytic choriomeningitis virus (LCM)

A

Europe, USA

Human (Pet hamsters → Children)

  • Paresis
  • Paralysis
27
Q

Lassa-; Mobala-; Mopeia virus

A

Africa

Humans, primates

  • Haemorrhage
  • Encephalitis
28
Q

Tacaribe-; junin-; Machup virus

A

S. America

Rodent → Human

  • Haemorrhage
  • Encephalitis
29
Q

Borna-: Morphology

A
  • -ssRNA genome
  • Helical capsid
  • Enveloped
30
Q

Borna-: Resistance

A

Weak

31
Q

Borna-: Biological properties

A
  • Baltimore V - Multiplication in the nucleus
  • Zoonotic
  • Rodent reservoir
32
Q

Borna-: Antigenic properties

A

Good antigens

33
Q

Borna-: Diagnosis

A
  • Clinical symptoms
  • Histopathology lesions
  • RT-PCR
34
Q

Borna-: Genus

A

Bornavirus

35
Q

Borna-: Examples

A
  • Bornavirus
  • Avian bornavirus
36
Q

Bornavirus

A

Euryxen

  • Encephalitis
  • Encephalosis (disease of brain)
37
Q

Avian bornavirus

A

Parrot

  • Proventricular dilation disease
38
Q

Bunya-: Transmission

A

Arbovirus (Except Hanta-)