[nickcarraway]

Vitamin D levels?

[Gaffer]

Yes. To me, it’s the most important for this type of thing.

[Mrs.Z]

My husband and adult son were super exposed to the virus, but they work outside and kept working during the pandemic...never got anything.
The rest of us have been taking supplements, including lots of D3 since well before covid.
Anecdotal, but still evidence.