Chapter 30.1, Problem 2MQ

Summary Introduction

Globally, four million people were killed by acute respiratory infections every year, specifically in developing countries. Respiratory diseases are considered as most common of all human diseases. The major vehicle that transmits the respiratory infection from one person to the other is called aerosol. Aerosols are generated by coughing, sneezing, and talking. Respiratory infections spread very rapidly, specifically in congested areas.