General Microbiology II

Concepts of Immunology

Innate Host Defenses

Innate host defense factors are non-specific immune (resistance) factors that are present before infection ... they work all the time and effective against many different kinds of microbes

Adaptive host defenses ... How do our bodies prevent infectious diseases?

Adaptive host defense factors are immune factors that are triggered by antigens, substances produced by microbes during infection, and are specific for those pathogens to which one is exposed


Killed or attenuated (weakened) preparations containing microbial antigens that are used to stimulate immune responses without causing disease are called vaccines

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© 1996-2011 John R. Stevenson. All Rights Reserved

email questions and comments to:
John R. Stevenson, Ph.D.
Associate Professor
Department of Microbiology
Miami University
Oxford, Ohio 45056
This document was last modified on Tuesday, 12-Apr-2011 00:09:35 EDT