Chapter 20, Problem 7MC

Summary Introduction

Introduction:

Polio is a viral infection which primarily affects the nervous system of the human body. Most of the people infected by polio through drinking contaminated water. This travels through the lymphatic system and bloodstream to infect the human’s nervous system. These cause four major types of polio in the human body. They are asymptomatic polio, minor polio, non-paralytic polio, and paralytic polio