How the immune system fights pathogens | The Human Body: Secrets of Your Life Revealed

Duration: 7'03''

Synopsis

Spec references J247: B6.3l J250: B6.3i. Researchers study microbes in extreme environments, which increases their risk of exposure to pathogens. Previous illness has helped build their immunity. White blood cell goes to lymph node, which produces antibodies if the pathogen is recognised. Second part of clip shows research on natural killer cells (type of white blood cell) and how they fight off pathogens.

Further Information
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