Actually there was some talk at least 9 days before I made the above comment: npr.org/2021/07/09/1014744345/pfizer-is-pursuing-a-booster-shot-and-new-vaccine-targeting-the-delta-variant
Actually there was some talk at least 9 days before I made the above comment: npr.org/2021/07/09/1014744345/pfizer-is-pursuing-a-booster-shot-and-new-vaccine-targeting-the-delta-variant