RT @CNBC: Pfizer says it is developing a Covid booster shot to target the highly transmissible delta variant https://t.co/OD7cbEKceg 0 atbildes
KM (2021-07-09 08:40:07) |
RT @CNBC: Pfizer says it is developing a Covid booster shot to target the highly transmissible delta variant https://t.co/OD7cbEKceg |