Pfizer, BioNTech Take Next Step Toward A Pan-Covid Vaccine — But Is The Demand There? By: Investor's Business Daily November 17, 2022 at 11:07 AM EST Pfizer and BioNTech said Thursday they've started testing a next-generation Covid shot, but the vaccine stocks tumbled. Read More >> Related Stocks: BioNTech SE - American Depositary Shares Moderna, Inc. - Common Stock Pfizer