Chapter 20, Problem 10CT

Summary Introduction

To answer:

The features shared by smallpox and polioviruses that helped medical science to get rid of these diseases.

Introduction:

Poliovirus is a small single-stranded RNA virus that spread from person to person via the oral route. Poliovirus infection is more evident in summer because warm weather supports the spread of this virus. Smallpox is a disease caused by the variola virus. It is a large virus with double-stranded DNA. The virus is transmitted by inhaling the virus from oral or droplets from an infected person. One-third of the people with smallpox died from the disease.