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