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pfizer-biontech
One COVID-19 strain could ‘break through’ the Pfizer vaccine, early results show
Allegheny County Health Department to Start Using Pfizer Vaccine – CBS Pittsburgh
Miami Doctor Dies After Taking Pfizer’s Coronavirus Vaccine; CDC starts investigation, World News
mRNA vaccines could conquer Covid-19 today, cancer tomorrow
Invima authorizes the use of the Pfizer vaccine
Brazilian President Bolsonaro says ‘COVID-19 vaccine can turn humans into crocodiles’