Vidcast:  https://youtu.be/HofDg7gyG14   CoVid infection risk dropped more than 11 fold for those who received a third, boosting dose of CoVid vaccine.  Israeli researchers studied 1,144,690 persons over the age of 60 boosted with a third dose of the Pfizer vaccine and compared the incidence and severity of their CoVid infections with those occurring in a non-boosted population of 4 million.   Those boosted enjoyed an 11.4 fold lower incidence of any CoVid infection as proven by a positive PCR test.  The 3rd boosting dose reduces the incidence of severe disease 10 to 15 fold.  We know that the protective immunity against CoVid declines over time with increasing numbers of breakthrough infections.  A third dose of mRNA CoVid vaccine appears to provide a promising protection against the resurgence of this already devastating CoVid pandemic.   My advice: get your third shot of either Pfizer or Moderna vaccine as soon as it is offered to you.  If you haven’t received any vaccine so far, do catch up.   https://www.medrxiv.org/content/10.1101/2021.08.27.21262679v1.full.pdf   #CoVid #vaccine #booster #pfizer