Pfizer Ceo Tests Good For Covid For A Second Time
Scientists say the vaccine continues to offer substantial protection against hospitalization and serious illness, even as new strains of the virus emerge. The evolving nature of the virus has made it a challenge for vaccine makers to create inoculations that supply protection against new variants. So I believe, in terms of variability and the adaptation of the vaccines, I think we will be – we are in a fantastic way. Most of our efforts now, it is to attempt to…