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Pfizer Says Updated Booster May Offer More Protection Against Ommicron

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Pfizer says changing its COVID-19 vaccine to better target the ommicron variant is safe and effective. The update, in a statement issued Saturdaycomes just days before regulators determine whether Americans should get another round of booster shots starting this fall. The most commonly used vaccines currently in circulation tend to target the original, more dangerous …

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Covid: Omicron subvariants BA.4 and BA.5 escape antibodies from vaccination and previous infection, studies suggest

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CNN † Omicron subvariants According to new data from researchers at Harvard Medical School’s Beth Israel Deaconess Medical Center, BA.4 and BA.5 appear to escape antibody responses in both people who have had a previous Covid-19 infection and those who have been fully vaccinated and boosted . However, Covid-19 vaccination is still expected to provide …

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