ONE OF THE REASON WEHAVE BEEN ABLE TO DOTHAT IS BECAUSE OFEXPANDED TESTING.WE KNOW IDENTYFIYINGSICK PEOPLE IS VERYIMPORTANT -BUT ONE VIEWER SENT USTHIS TWEET-ASKING HOW FAR WE AREFROM ANTIBODY TESTINGIN THE METRO AND IF THATWILL BE AN ACCURATEREPRESENTATION OFIMMUNITY?WE'RE JOINED WITH DR.DANA HAWKINSON WITHTHE UNIVERISTY OFKANSAS HEALTH SYSTEMDR - HOW RELIABLE ISANTIBODY TESTING?ANOTHER VIEWER WASCURIOUS HOW MANYPEOPLE MIGHT HAVEGOTTEN IT BEFORE WEKNEW HOW TO IDENTIFYTHE SYMPTOMS.THERE'S POSTSCIRCULATING ONLINESAYING PEOPLE WHO GOTA 'RESPIRATORYINFECTION' LATE LASTYEAR MAY ALREADY HADCOVID-19.DO WE KNOW HOW LONGIMMUNITY LASTSTHANK YOU SO MUCH FORJOINING US DR.HAWKINSON.