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Within the human body there is said to be approximately 60 million cells. White blood cells, red blood cells, platelets, macrophages, memory cells, killer T cells, natural killer cells, B cells, mast cells and many more! All these different cells work tirelessly within the body, never resting for a moment, at any time willing to resist invading foreign entities like germs and viruses to the bitter end! From Akane Shimizu, winner of Shounen Sirius

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