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