Pfizer, Germany’s BioNTech release new data on Covid-19 vaccine August 23, 2020 Auto Bot BioNTech, BioPharma, biopharma nl, BNT162b2, Germany, New York, Pfizer, SARS-CoV-2, Vaccines 0 The companies also said their Phase II/III study, slated to enroll about 30,000 participants, had already dosed more than 11,000.