Pfizer : COVID: Reino Unido aprueba vacuna de Pfizer y anuncia que ... . Pfizer inc., one of the world's largest biopharmaceutical companies, and biontech, a. The company said its vaccine generated $3.5 billion in revenue in the first three months of this year. Government for donation to poorest nations. Pfizer also plans to begin testing whether a modified version of the vaccine works well against the variant from south africa. For moderna, the waiting period between shots in 28 days. Food and drug administration issued the first emergency use authorization (eua) for a vaccine for the. If you're similarly driven, you'll find there's no better place to begin—and continue—your career than at pfizer. Despite the disparity in dosage, efficacy between the two vaccines is nearly identical. What you need to know. Engages in the discovery, development, and manufacture of healthcare products specializes in medicines, vaccine, and consumer healthcare.