About 4 weeks ago people in my office started getting the flu. Most of my coworkers lost about a week of work each. When I found out that it was flu, my wife and I started taking a 4oz glass of elderberry wine after dinner each night.
“Elderberry Trumps Tamiflu for Flu Remedy” https://www.naturalnews.com/026354_flu_Tamiflu_elderberry.html#
As of today, I am the only one from work who hasn’t come down with the flu.
Elderberry is great for prevention too. You can buy the syrup, but the wine sounds more fun.