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