Have to say, I don't know the validity of this statement, so please use discernment. However, it's coming from the CEO of Pfizer while speaking to Klaus Schwab of the World Economic Forum. The constant ads brought to you by "Pfizer and Biontech" on the radio each day, ignoring the fact that Covid is a non-issue now, is mind-boggling. NO ONE talks about natural immunity and its effects which is bizarre.
Steve M