Pfizer and BioNTech Developing Single-Shot mRNA Vaccine for Covid and Flu

American company Pfizer and its German partner BioNTech announced on Nov. 3 that they are trying to combine the COVID and flu mRNA vaccines in one single-dose shot. Dr. David Wiseman, former leading scientist at Johnson & Johnson and former COVID-19 advisor to U-S senator Ron Johnson, tells NTD that combining the two shots helps Pfizer but hinders science.