Rosenberg (IMAGE) UT Southwestern Medical Center Caption Drs. Roger Rosenberg, left, and Doris Lambracht-Washington have developed a DNA vaccine that can reduce in mice both toxic proteins associated with Alzheimer's disease. The vaccine has been tested in three mammals with no adverse immune response. Credit UT Southwestern Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.