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    Pfizer changes convention for virus vaccine: study

    Drugmaker Pfizer has modified the protocol for its late-stage study of its vaccine against the new coronavirus, this time to include more young participants. The company said on Monday that it’s received permission from the Food and Drug Administration to include adolescents aged 12 through 15 in its global COVID-19 vaccine study. New York-based Pfizer

    Pfizer, AstraZeneca vaccines secure against Delta variant: Lancet study

    The Delta variant of coronavirus, first identified in India, doubles the risk of hospitalisation compared with the Alpha variant first found in the UK, but Pfizer and AstraZeneca vaccines provide good protection against the strain, says a study published in The Lancet journal. Researchers at Public Health Scotland and the University of Edinburgh, UK, found