"Before we built skyscrapers and started spending almost all of our time indoors, people had less of a problem getting enough vitamin D. Now, even though very little sunlight is required to avoid a deficiency, it is common among people who are house-bound or institutionalized in hospitals, nursing homes, or prisons. In their research, Zhang and Liu noted that the coronavirus mostly affected these same populations. So, the researchers posited, “Vitamin D could work as another therapeutic option for the treatment of this novel virus”" [1].
Read more from Dr Hamblin, at The Atlantic:
https://www.theatlantic.com/health/archive/2020/06/paging-dr-hamblin-can-vitamin-d-stop-coronavirus/612547/
Reference
[1]. Hamblin, James (2020). "Paging Dr. Hamblin: Does Vitamin D Help Fight COVID-19?." The Atlantic.
Reference
[1]. Hamblin, James (2020). "Paging Dr. Hamblin: Does Vitamin D Help Fight COVID-19?." The Atlantic.