Chapter 21, Problem 4A

Summary Introduction

To write:

The factors made the eradication of smallpox and other diseases which meet these criteria.

Given:

“Smallpox”, “Eradication factors” and “Other diseases”.

Introduction:

Smallpox is an infectious disease caused by an orthopoxvirus or smallpox variola virus. The disease causing virus contains two variants such as Variola major and Variola minor. Variola major has more mortality percentage of 20% compared to the Variola minor variant with 1%.

The artificial vaccine was first developed for smallpox disease and it is the first disease eradicated from the human population.