Vical Incorporated is a biopharmaceutical company that develops products based on its DNA delivery technologies for the prevention and treatment of serious or life-threatening diseases. Its product candidates include CyMVectin prophylactic vaccine for cytomegalovirus (CMV), a therapeutic vaccine and prophylactic for herpes simplex virus type 2 and VL-2397 antifungal. The company was founded in 1987 and is headquartered in San Diego, California.