White Blood Cells Vs Bacteria

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Image: NIAID/RML

Warzone: S. aureus bacteria escaping destruction by human white blood cells.

White blood cells are at once the intelligence agents and the crack commandos of the body’s immune system. They’re the special forces that hasten to the scene of an attack whenever germs or infections are entering the body. Their mission: to take out invading pathogens, and generally to defend against infectious diseases and foreign substances – like potentially malevolent bacteria.

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