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Immunity is conferred primarily through two mechanisms: innate and adaptive immunity. Innate immunity provides immediate, non-specific defense against pathogens, utilizing barriers like skin and mucous membranes, as well as immune cells like phagocytes. Adaptive immunity, on the other hand, develops over time and involves the activation of lymphocytes (B cells and T cells) that specifically recognize and remember pathogens, leading to a targeted and lasting immune response. Vaccination can enhance this adaptive response by introducing antigens, prompting the immune system to produce memory cells without causing disease.

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1mo ago

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I must confer with my colleagues


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I'd like to confer with my associates.


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