I was going to spare Dr. Spencer the embarrassment of taking apart his piece in detail, but since he has asked:

His errors, fallacies, and misleading statements are legion (and likely intentional, as he is too smart not to understand them)... https://twitter.com/Craig_A_Spencer/status/1307486083517734915

Throughout the piece, he compares #Covid to the original SARS and MERS, pointing out both those illnesses can have long-term impacts. SARS and MERS are caused by coronaviruses, so the comparison seems reasonable.

It isn't. SARS and MERS are far more dangerous than Sars-Cov-2...

How much more dangerous? The virus that causes MERS has a fatality rate more than 100 times that of Sars-Cov-2. Compared to those viruses, Sars-Cov-2 is more like the flu - or the coronaviruses that cause ordinary colds...

Throughout the piece, he elides the difference between the relative handful of patients who were put on ventilators and survived (likely fewer than 25,000 nationally since March, though I haven't seen a figure) or became very seriously ill with #Covid and everyone else...

Being put on a ventilator is a last resort (or should be); anyone who is on one for more than a few hours, for any reason, is likely to face an arduous recovery lasting weeks or months. That fact tells us NOTHING about the prognosis for the vast majority of #covid patients...

Nearly all of whom are never hospitalized. About 550,000 Americans have been hospitalized with #Covid since March, fewer than 1 percent of the total have been infected with #sars-cov-2 (remember, antibody tests show PCR tests understate infections by a factor of 10 or more)...

And most of those people are released quickly and do NOT return (at least within two weeks). In fact, the "long Covid" phenomenon that Dr. Spencer and other advocates are trying to create focuses not on the tiny number of people who became acutely ill from #SARSCoV2...

And who might be expected to need time to regain their strength, but a different group - millions of people who were not hospitalized, had only mild acute symptoms - and in many cases do not even have positive PCR or antibody tests - yet now self-report a malaise lasting months.

There are next to no independent diagnostic tests to support these self-reported symptoms - one of the few that Dr. Spencer mentions is a German heart study that has already been debunked - and many of them are frankly consistent with anxiety and other psychiatric malaise...

Nor has Dr. Spencer (or anyone else) ever explained why "long Covid" so overwhelmingly targets younger (often middle-class and white) women, when Covid itself is far more dangerous to older, poorer, minority men. Yet the "long Covid" demographic is immediately recognizable...

It's the same group that suffers from chronic fatigue syndrome, fibromyalgia, gluten intolerance, and a host of other ill-defined conditions that tend to respond to exercise and anti-depressants better than anything else.

Coincidence, no doubt.