The extract of black elderberry found very effective against the H5N1 strain of avian influenza-Avian Bird Flu (Zakay-Rones et al 1995) and recent research has shown that in-vitro at least 99% effective in this strain of influenza (Balasingham 2005 ).
It contains a unique active ingredient called Antivirin (Antivirin®) that helps protect healthy cells and inactivates infectious viruses.
After administration to patients, scientists have found that the extract of black elder had the ability to rapidly prevents infections (Zakay-Rones 2004).
Latest Clinical Research 2009 -During an in-vitro research that took place in London from Retroscreen Virology in October 2009, the extract of black elderberry found at least 68.37% effective against the virus H1N1, known as Pandemic Swine Flu.