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Module 3 > Viruses > Flashcards

Viruses Flashcards

1
Q

How many CBPV virus particles can a honey bee carry?

A

10 trillion virus particles

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2
Q

How is CBPV transmitted?

A

By bees brushing together (causes their hairs to fall out so the virus can enter) and by cleaning up infectious faeces

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3
Q

Which type of CBPV is bloated abdomens and dislocated wings associated with?

A

Type 1

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4
Q

What are symptoms of both types of CBPV?

A

Trembling bees that don’t fly
Crawling on ground or refused entry

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5
Q

What can dislocated wings be a cause of?

A

Type 1 CBPV
Acarine

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6
Q

Why does dysentery and bloated abdomen occur with CBPV?

A

There is excess water inside the bee so causes the honey crop to be full of water and cause dysentry

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7
Q

What are the treatments for cbpv?

A

Queen replacment
Shook swarms away from the hive
Take the floor out so they fall out
Giving more space

All of these help reduce bee to bee transmision

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8
Q

What are the symptoms of ABPV?

A

Increasing number of dead bees outside or bees on the crownboard that are jerky and uncoordinated

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9
Q

Is CBPV spread by varroa?

A

No - it is found in them but not spread by it we beleive

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10
Q

Is ABPV spread via food contamaniation?

A

Yes

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11
Q

What is bees huddled on the top bars a sign of?

A

CBPV

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12
Q

Which viruses can have cytoplasms exchange due to broken cuticles?

A

ABPV and cbpv

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13
Q

What are the the symptoms of Black Queen Cell virus?

A

Causes the queen pupae to go yellow and the cell to become black

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14
Q

How is BQCV spread?

A

Vertical transmission from queen to eggs.

Could also be spread by feeding but will often only multiply if nosema is presenr

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15
Q

How is Deformed Wing Virus spread?

A
  • An infected drone mating with a healthy queen
  • An infected queen laying an infected egg
  • Feeding activity : nurse -> larvae
  • Varroa acting as a vector
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16
Q

What are the symptoms of DWV?

A

Caused developing pupae to die
Emerging bees will exhibit deformed wings and can have shortens abdomens

17
Q

What is Kakguo virus?

A

This is a subtype of DWV, and it means ready to attack in Japanese. It is where the disease concentrations in the mushroom bodies of the bee brain and makes them more aggresive

18
Q

What is filamentous virus?

A

It multiples in the fat body and ovarian tissue.

To diagnose, look at the haemolymph of a bee and if it’s milky white these are the filament

19
Q

What is virus X associated with?

A

Amoeba

20
Q

What is BQCV associated with?

A

Nosema

21
Q

What is CBPV associated with?

A

Acarine

Module 3 (13 decks)

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