@RebEliezer – interesting comparison. I recall it is also if patient says that he needs to eat, we listen to him too. In modern terms, doctor knows statistics for general population; the patient himself knows himself best. I do not recall an option to consult a tzadik. .. So, you can either listen to CDC or be more careful.
R Meir Twersky addresses an additional question in his teshuva – when there is a new unfamiliar disease, it is not enough to listen to one doctor as information is not certain. Also, do not listen to politicians, as they have their own political reasons that are not the same as our standard on saving lives.