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J&J: Booster dose of its COVID shot prompts strong response
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LONDON (AP) — Johnson & Johnson said Tuesday that a booster of its one-shot coronavirus vaccine provides a stronger immune response months after people receive a first dose. J&J said in statement that an extra dose — given either two months or six months after the initial shot — revved up protection. The results haven't yet been published or vetted by other scientists. The J&J vaccine was considered