November 2020Israelis celebrated on Friday when Prime Minister Benjamin Netanyahu announced that the country had signed a deal with Pfizer Inc. to buy its novel coronavirus vaccine. But the fact remains that if Pfizer succeeds – or Moderna, with whom Israel also has a contract – these will be the first-ever messenger RNA (mRNA) vaccines brought to market for human patients.In order to receive Food and Drug Administration approval, the companies will have to prove there are no immediate or short-term negative health effects from taking the vaccines. But when the world begins inoculating itself with these completely new and...