And a new antibody study out of Stanford medicine painting an encouraging picture fifty to eighty fold more people in Santa Clara county California had covert nineteen antibodies than had been believed ABC medical contributor Dr Todd eller and explains what that means that's good news because that means that even though we think only seven hundred thousand people have had confirmed cases in the U. S. it's more like tens of millions of people so the mortality overall is much less than the four percent that we thank but as of this morning at least seven thirty seven thousand people in the U. S.