COVID-19 Weekly Update – August 19th 2020
Until scientists develop an effective and safe vaccine, and that vaccine is administered to millions of people, our best means of protection from COVID-19 is herd immunity. Recent models hint that the protective effects of a population that has already been infected by the COVID-19 virus may exist at much lower percentages than previously thought. Instead of requiring that 70 to 80 percent of a population be immune, that threshold… Read more