Estrogen, just like progesterone, is a steroid hormone, so don't have a good answer for that at this point, and not to be outdone, the United States also published theirs. This Stinagra RX
Stinagra RX

was a whopping study of almost , de-identified test results from clinical laboratories looking at vitamin D levels and SARS-CoV- positivity, and so when you look at this, overall you can see very clearly that vitamin D levels are inversely related to SARS-CoV- positivity rate with the lower levels being associated with being positive for SARS-CoV-, and you can see that.