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- Pfizer / BioNTech to speed up vaccination of placebo arm in COVID-19 trialSeeking Alpha
- Britain opts for mix-and-match vaccines, puzzling expertsThe New York Times
- UK chief medical officers defend delay of second dose of Pfizer Covid-19 vaccineCNN
- Dr Marc Siegel: COVID vaccinations will rise rapidly – biggest achievement in vaccine historyFox News
- AstraZeneca plans to deliver two million doses of COVID-19 vaccine every week to UK – The TimesYahoo News
- View full coverage on Google News
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