Virology Introduction

Question 1

virus

Answer 1

an obligate intracellular parasite

Question 2

virion

Answer 2

an infectious viral particle

Question 3

host cell

Answer 3

a cell that replicates a virus

Question 4

host range

Answer 4

the species that a particular virus can infect, most have a narrow host range

Question 5

give an eg of a norrow host range

Answer 5

small pox virus only infects humans. polio virus infects humans and primates

Question 6

give an eg of a broad host range

Answer 6

rabies virus can infect most warm blooded animals

Question 7

tissuetropism

Answer 7

refers to the type of cell in an org that can be infected and then replicate a virus

Question 8

host range and tissuetropism are based on

Answer 8

whether the host cells have receptors required for the attachment of the virus and whether the host cell can replicate the virus