By LAURAN NEERGAARD AP Medical Writer WASHINGTON (AP) — AstraZeneca may have included 'outdated information' in touting the effectiveness of its COVID-19 vaccine in a U.S. study, federal health officials said Tuesday in an unusual public rift that could further erode confidence in the shot. In response, AstraZeneca said that it is working on more up-to-date information and that the more recent findings are consistent with the earlier ones. It promised an update within 48 hours. It was not clear exactly what concerns U.S. health officials have. But the unprecedented tension erupted just hours after AstraZeneca released information it hoped […]
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