The Amazing Immune System
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The Amazing Immune System
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Our immune system protects us against the germs, viruses and parasites that are all around us. It is an amazing defense system!  We learn about the functions of autoimmune cells, white blood cells, viruses, DNA, bacteria (helpful and harmful), antibodies, scabs, fibrin, natural and acquired immunity, vaccination, and pathogens, We also learn how protect ourselves from illnesses caused by these invaders.
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