Why protective antibodies fade after COVID-19 vaccines

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Illustration of healthy bone marrow showing spongy texture and cells within.

Why protective antibodies fade after COVID-19 vaccines

Researchers found that current COVID-19 vaccines fail to generate mature and durable antibody-producing cells in the bone marrow, which could help explain why protection tends to decline over time. A better understanding of long-term immune responses could lead to improved vaccines that provide enduring protection.


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