Guidance

Immunity and how vaccines work: the green book, chapter 1

Information for public health professionals on immunisation.

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Immunity and how vaccines work: the green book, chapter 1

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Immunity is the ability of the human body to protect itself from infectious disease. The defence mechanisms of the body are complex and include innate (non-specific, non-adaptive) mechanisms and acquired (specific, adaptive) systems.

Published 19 March 2013