http://www.webmd.com/cold-and-flu/news/20031... studies source One study WebMD One study Elderberry and flu "Elderberry Fights Flu Symptoms" elderberry extract source 2003 study from researchers in Norway WebMD WebMD source alleviate flu symptoms source posted on WebMD source posted on WebMD www.webmd.com/cold-and-flu/news/20031222...