The crucial role of Vitamin D in explaining the behaviour of coronaviruses and flu viruses

An extract from my comment on FB [see also this] ADDENDUM Many "experts" are blind to the role of Vitamin D in human physiology. But Vitamin D is ABSOLUTELY CRUCIAL. Most Africans who migrated to northern altitudes 100k years ago DIED but babies with a mutation against melanin survived. The White Africans forget this basic […]