Chapter 15, Problem 3R

Summary Introduction

To review:

The influence of the hemolysins, leukocidins, coagulase, kinases, and hyaluronidase, siderophores, and IgA proteases to the pathogenicity of microbes.

Introduction:

Microorganisms that have the ability to cause infectious diseases are called as pathogens. This ability is denoted as the pathogenicity of a microbe. Such microorganisms include bacteria, fungi, virus, and protozoa. The virulence of a pathogen denotes the extent of pathogenicity of that particular microorganism. Illness in an individual is caused either by disturbing the normal metabolic activity of the host or by inducing the host’s immune system to produce a response. Pathogenic bacteria have developed a wide range of mechanisms to infect the human system. Such pathogens have the ability to colonize and invade organs of the human system and ultimately leading to serious diseases in human.