You have made a lot of statements that are not necessarily true. The “experts” that I am listening to are often saying they don’t have a lot of the answers. Statements you have made as fact, when you do the research, often have conflicting reports. Although this is a new virus, it is in a same family as 3 other viruses including SARS and MERS. A lot of studies are looking at our immune response using other Corona viruses. There are also a number of studies done on immune responses to Covid-19. I have provided links (and could provide numerous more) to support the importance of nutrition and building our immune system as well as information on the Corona Virus family.
Coronavirus | Human Coronavirus Types | CDC
Scientists identify potential targets for immune responses to novel coronavirus: Their analysis provides essential information for vaccine design and the evaluation of diagnostics and vaccine candidates -- ScienceDaily
Opinion | Who Is Immune to the Coronavirus? - The New York Times
Stock up on these 9 healthy foods to boost your immune system during coronavirus
https://theconversation.com/5-ways-n...es/PMC4125530/