This is a 6 year old video. Optimum levels are now 32-100 ng/ml. But you can watch the fundamentals...
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COVID-19 PREVENTION AND IMMUNITY BOOSTER
Here's the outline...there's still time to launch this on a war footing before situation goes out of control like in Italy..
1. THE BEST DEFENSE FOR any flu is to strengthen our Immune System year round. And Vitamin D3 does precisely that! Luckily in India, D3 (Cholecalciferol) “Arachitol” injections in 7.5mg (300,000 IU) and 15mg (600,000 IU) are available on prescription at most hospitals in India and doses of 100,000–300,000 IU have been administered intramuscularly 6-monthly or once-yearly quite safely.
A single therapeutic...
