Black Elderberry has been found to be effective against the H5N1 strain of Avian Flu (Zakay-Rones et al. 1995). Black Elderberry contains a unique compound called Antivirin® that can help protect healthy cells and inactivate infectious viruses. When given to patients, scientists have found the Black Elderberry, has the ability to ward off flu infections quickly (Zakay-Rones 2004). Black Elderberries are rich in anthocyanins which are a type of flavonoid – anthocyanins are antioxidants that may protect cells from free radicals and support your body’s immune system.