"Pfizer plans to submit data to the Food and Drug Administration for a fourth Covid shot soon, and it’s working on a vaccine that protects against all coronavirus variants, CEO Albert Bourla told CNBC on Friday. "
"Pfizer plans to submit data to the Food and Drug Administration for a fourth Covid shot soon, and it’s working on a vaccine that protects against all coronavirus variants, CEO Albert Bourla told CNBC on Friday. "