Natural way to boost immune system before coronavirus attacks for faster recovery:

1) Black seed oil (kala jeera oil) Daily orally. it has anti maleria property which will boost body's immune system against corona virus.
Dose: 2 grams of ground black seed daily for 12 weeks. Or you can take 500 mg of black seed oil twice daily for 4 weeks.
Daily Dose and side effects: https://www.webmd.com/vitamins/ai/ingredientmono-901/black-seed
(source : https://scialert.net/fulltext/?doi=je.2007.1.19 and
https://www.hot97.com/hip-hop-news/hot97-now/styles-p-believes-that-he-had-an-undiagnosed-case-of-the-coronavirus-in-january/)

2) Cashew (Contains Zinc): Zinc fights against cold viruses
Dose: 1.5 to 2 cup daily
(source: https://www.eatthismuch.com/food/nutrition/cashew-nuts,2642/ and
http://cajuco.com/blog/zinc-cashews-and-you/)