So they tested people when or before they arrived and it said negative for covid, and then they tested again later while they were still in the hospital and it

So they tested people when or before they arrived and it said negative for covid, and then they tested again later while they were still in the hospital and it said positive for covid? reads article Of course people with Covid tested positive after admission because the test only occurs after admission. reads article again Of course the admission symptoms were not "for Covid" as the symptoms help you lead down the path of what the ailment is! This study is about potential errors in reporting, which still need to be investigated.