http://www.swansonvitamins.com/swanson-superior-herbs-
agaricus-
blazei-mushroom-extract-500-mg-90-veg-caps
And I am exercising daily, getting as much rest as I can, reducing stress as best as I can, eating healthy, etc. All in an effort to boost my immune system. Elderberry tablets or liquid is good as is Green Tea Extract pills. So far, so good for me. If you smoke, stop. If you drink, stop or cut down dramatically or stick to wine. Beer and ales are not good for this virus.