Introduction to Viruses Flashcards Preview

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Flashcards in Introduction to Viruses Deck (16)
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1
Q

How are viruses classified? (3 ways)

A
  • Host range
  • Virion structure and morphology
  • Structure and replication of virus genome nucleic acid
2
Q

How are viruses cultured?

A

In cell lines, tissue or animals

3
Q

What are three examples of respiratory viruses?

A
  • Influezna A
  • Rhinovirus
  • Respiratory syncytial virus
4
Q

What’s an example of a gastrointestinal virus?

A

Rotavirus

5
Q

2 examples of a neurological virus

A
  • Enterovirus

- Herpes simplex

6
Q

2 examples of viruses that cause tumours

A
  • Papillomavirus

- Retroviruses

7
Q

What is meant by viruses being icosahedral?

A

They have 20 faces

8
Q

What are the types of transmission that can come about through human-human contact?

A
  • Blood borne
  • Sexual
  • Vertical (mother to child)
  • Faecal oral
  • Close contact
9
Q

What are the other types of transmission?

A
  • Droplet
  • Airborne
  • Vector
  • Zoonotic
10
Q

Describe co infection and how it results in resistant bacteria

A
  • Virus A enters host at the same time as Virus B (that can successfully infect the host )
  • Recombination between the species occurs
  • New strain of virus A with the infectivity of Virus B
11
Q

What are the 3 consequences of a viral infection?

A
  • Clearance of the virus
  • Chronic infection
  • Latent infection
12
Q

What two ways can the virus be cleared?

A
  • Short term - no immunity

- Long term - development of immunity

13
Q

What virus causes chronic infection?

A

HIV

14
Q

What virus can cause latent infection?

A

Varicella

15
Q

Name a virus that can lead to cancer

A

HPV leads to cervical cancer

16
Q

What do you use to detect antibodies?

A

ELISA