I'm up there in years and never sick, nadda, no colds, flu or vaccines and I know what is doing it for me. Vit C, Vit D, Zinc, Grape Seed Extract (taking it 26 yrs). Not even a sniffle thru all this so called virus issue.
I didn't either until 1995, it is supreme. ... if only millions knew, more would be healthier and alive.