the immune system immunity natural protection human body against external factors bacteria viruses various |
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| navigate by keyword : dangerous medical hygiene vaccination flu immunity virus protect antioxidant protective care vaccine system healthcare organism illness infection vitamin biology influenza prevention detox shield fight safety protection fever cell healthy injection pandemic immune attack strong coronavirus therapy health treatment microbiology epidemic boost immunization ill sick background medicine disease generated |
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| The immune system. Immunity. Natural protection of the human body against external factors, bacteria, viruses, various diseases. A shield on the guard of a human being |
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