Pfizer says early data signals COVID-19 vaccine is effective
By Linda A. Johnson And Lauran Neergaard Pfizer says an early peek at its vaccine data suggests the shots may be 90% effective at preventing COVID-19, indicating the company is on…
By Linda A. Johnson And Lauran Neergaard Pfizer says an early peek at its vaccine data suggests the shots may be 90% effective at preventing COVID-19, indicating the company is on…