As Cowan explains, cell bodies called lymphocytes (better known as white blood cells) will first, recognize a pathogen and send signals out to other lymphocytes to aid in the destruction of the pathogen. ... These B and T cells remain in the blood stream for years, thus, preventing that particular pathogen from causing disease in the future (2). ... Additionally, Guinea Worm Disease (GWD) is a parasitic infection that causes painful blisters in which parasitic worms, sometime up to one meter in length, emerge. ...

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• Approx Pages: 12
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• Grade Level: Undergraduate