Classification of Viruses

Question 1

T/F The same disease can have different names.

Answer 1

T: Hog cholera also known as Classical swine fever

Question 2

T/F Different diseases can have the same names.

Answer 2

T: Hand Foot and Mouth in humans is different than Foot and Mouth in livestock

Question 3

Baltimore Classification System

Answer 3

based on viral genome; 7 groups depending on nucleic acids, sense, strandness, and method of replication

Question 4

Baltimore Class I

Answer 4

dsDNA without RT

Question 5

Baltimore Class II

Answer 5

ssDNA without RT

Question 6

Baltimore Class III

Answer 6

dsRNA without RT

Question 7

Baltimore Class IV

Answer 7

(+) ssRNA without RT

Question 8

Baltimore Class V

Answer 8

(-) ssRNA without RT

Question 9

Baltimore Class VI

Answer 9

(+) ssRNA with RT

Question 10

Baltimore Class VII

Answer 10

dsDNA with RT

Question 11

ICTV classification based on…

Answer 11

• nature of virus genome and virus genetic diversity
• virus replication strategies
• virus morphology
• order -> family -> subfamily -> genus -> species

Question 12

order

Answer 12

virales

Question 13

family

Answer 13

viridae

Question 14

subfamily

Answer 14

virinae

Question 15

genus

Answer 15

virus

Question 16

inclusion body

Answer 16

an abnormal structure in a cell nucleus or cytoplasm, such as aggregates of protein, having characteristic staining properties and associated especially with certain viral infections