Amil:
He tested the patients with flu like symptoms with this year’s flu test to RULE OUT THE FLU. He did do COVID tests in the beginning, and a majority came back positive. Since tests are in short supply, I believe he now mainly diagnoses based on symptoms.
Remember, KJ was considered such a hot-spot by the negative media, that nearby town officials tried pressuring Cuomo to do a full lock-down there so that the virus doesn’t spread to their towns. (However, he also treats patients from other neighborhoods.) Sure there was some anti-Semitism behind it, but it’s undeniable that our Heimishe communities have been hit hard.
Ultimately it boils down to Dr. Zelenko’s credibility as a doctor. Although I can’t vouch for him personally (and he did make some off the bat comments in the beginning) he seems to have a solid reputation in 16 years of practice. And he sounds knowledgeable.
It’s worth noting that Dr. Zelenko is self-isolating due to his medical condition. This may mean he had more time for research, but also that he relies on his staff for hands-on work.