Chapter 6, Problem 3TQ

Summary Introduction

To review:

The evolution of animal traits to provide resistance against viral infection.

Introduction:

The animal and bacterial viruses attach to specific receptors molecules located on the host cell surface. This receptor specificity determines the host range of viruses. The different animal tissues contain various receptor molecules that contribute to the viral tropism which is the ability of a virus to infect a specific tissue in a complex host like human.