In the above example, a person had a horrible cough but tested negative, but (adding my comments) it appears that due to the scare-mongering tactics the person (and/or friends and relations) freaked out believe he was dying. So instead of resting, drinking tea and chicken soup, and maybe getting a prescription cough medicine, he went to hospital taking up valuable resources and exposing himself to Covid19.
If this is the test before Maschiach comes, it seems that Ha-Shem has really given up on us and is dumbing down the test.