Drug Discovery and Development, April 24, 2007 GALVESTON - According to researchers at the University of Texas Medical Branch, Galveston, although Hepatitis A and C are seemingly unrelated liver viruses, they have one important thing in common: a trick to avoid destruction by the immune system. Both dodge immune attacks by attacking the same protein that's involved in a chain of molecular signals that triggers antiviral responses.  (This story continues to appear in national and international print and electronic media.)