HHS: Introduction

Introduction

Health Hygiene & Sanitation

Lesson 11 : Host Defences

There are three types of host defences:

Local and systemic
Non specific and specific
Humoral and cellular

cis the ability of the body to recognize, destroy and eliminate the antigen, foreign to his own. A person is said to be immune when he possesses specific immune bodies or cellular immunity as a result of previous infection or immunization so as to respond adequately, to prevent infection and clinical illness following exposure to a specific infectious agent.

Last modified: Saturday, 28 April 2012, 11:46 AM

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