What's next for Pfizer, Moderna beyond their projected $51 billion in combined Covid vaccine sales this year : Rashtra News #Whats #Pfizer #Moderna #projected #billion #combined #Covid #vaccine #sales #year Vials with Pfizer-BioNTech and Moderna coronavirus disease (COVID-19) vaccine labels are seen in this illustration picture taken March 19, 2021.Dado Ruvic | ReutersPfizer and Moderna