Microbiology: Virology: RNA Viruses

Question 1

The virus(es) that cause influenza belong to which family?

Answer 1

orthomyxoviridae

[From: “Orthomyxoviruses” video]

Question 2

Influenza virus type A and B have _-segment ___ genome, and type C have _-segment ___ genome. Each segment contains a few genes.

Answer 2

8-segment RNA
7-segment RNA

[From: “Orthomyxoviruses” video]

Question 3

What is the most common type of influenza virus?

Answer 3

type A

[From: “Orthomyxoviruses” video]

Question 4

Type A influenza viruses can be further subdivided based on two of the glycoproteins on its protective envelope surface: H protein (____________) and N protein (____________)

Answer 4

hemaglutinin
neuraminidase

[From: “Orthomyxoviruses” video]

Question 5

The structure of H protein (hemaglutinin) and N protein (neuraminidase) can vary a bit, so different versions are identified by a number. (e. g. H1N1)

Answer 5

[From: “Orthomyxoviruses” video]

Question 6

What are the most common subtypes of influenza A to affect humans?

Answer 6

H3N2 and H1N1

Question 7

What is the proper convention for naming viruses?

Answer 7

[type]/[original host