Viral classification

Question 1

What are the two main historical systems for classifying viruses ?

Answer 1

1. The Baltimore classification

2. The international committee of taxonomy of viruses (ICTV)

Question 2

How many groups of viruses are there int he Baltimore classification ?

Answer 2

7

Question 3

Name the ICTV classification of the small pox virus.

Answer 3

Order:Unassigned
Family: Poxviridae
Subfamily:Chordopoxvirinae
Genus: Orthopoxivirus 
Species: Variola major

Question 4

What is the ICTV classification system based on ?

Answer 4

This classification is based on the various characteristics of different viral species.

Question 5

What are the host types, nucleic acid types nd capsid symmetry of the poxiviridae family ?

Answer 5

Host: Vertebrates and insects
Nucleic Acid type: linear dsDNA
Symmetry: complex

Question 6

Does the poxiviridae family have enevelopes and what is the main diameter of the family ?

Answer 6

They do have envelopes and the diameter of the virions is roughly 260nm

Question 7

Name the immunologic properties of the peroxiviridae family

Answer 7

They block the action of the gamma interferons.

Question 8

How are is the virus released form the host cells ?

Answer 8

Through micro virus budding and host cell bursting.