Zinc has been proven for many years to slow or stop virus from replicating. Supplements like Zicam and Sambucal have been available at Walgreens and CVS for many years. I’ve been taking them for years once I feel a sore throat or any symptoms coming on. The earlier you take them the better off you’ll be. Buy them up and have them at your disposal. If you’re in the ICU and on a ventilator, it is too late. The minute you see symptoms is when you start taking these supps.