I mean primarily the Respiratory system mostly and for me my Vit C, D, Zinc, Quercetin and Grape Seed Extract keep this SYSTEM of my body in tip top condition. I have NO respiratory issues and at 82 I'm a happy person. And I know MANY MD's who preach the above for their strong good health and I could post many of them here but I don't think they are wanted here. But maybe I'll post a list of Alternative MD's in the Vitamin/Supplement section that some members may appreciate. **

The two things that seem to stand out with this Covid is respiratory and the smell/taste and I have both as I sit here and eat a great reuben sandwich.

And Kiwi I know you and I come from opposite ways of healing and I'll embrace pharma and I take a couple meds but very little. And I've been in the ER from a pharma drug back in the 80's, so this was my
beginning of where I am now.