Research appearing in Phytomedicine (Vol. 14, Issue 1, Pages 23-30) supports that cranberries may have some antiviral properties. Cranberry juice was found to protect against bacteriophage T2 and bacteriophage T4. The researchers also found that a 20% solution of cranberry juice prevented simian rotavirus SA-11 from binding to the surface of cell. One of the major health claims about cranberries is that they prevent the adhesion of certain bacteria, notably E. coli, to the lining of the bladder and rest of the urinary tract. Unsweetened cranberry juice has been used by some to help to prevent bacterial urinary tract infections. This new research shows that it may have a beneficial effect against viruses as well.