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What you need to know about 'original antigenic sin' with fall COVID boosters around the corner

Por: ABC News Health September 20, 2022

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With new COVID variant-specific booster shots set to roll out in the coming week, vaccine scientists argue that more research is needed to understand how a person's early immune response -- either through vaccination or infection itself -- may impact future protection against a constantly evolving virus.The body learns its best defensive moves during its first encounter with a virus, according to experts. However, once a virus evolves, the... + full article



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