[_nothing]

Yeah, people have been talking about the decreased Vitamin D levels in COVID patients and suggesting supplementation since almost the very beginning of the pandemic. Maybe they just don't want to draw attention away from the fact that vaccination and masking are still by far the best means of avoiding hospitalization.

[Supermancho]

iirc, the first mention I remember was from a Stanford, CA area Doctor who was not waiting for the CDC to make a press release before making a statement about what he saw anecdotally (~Nov 2019) given how quickly his hospital was overwhelmed. Specifically, he noted that patients with Vitamin D deficiencies were having the worst symptoms.