SAN DIEGO, Jan. 14, 2009 (GLOBE NEWSWIRE) -- Vical Incorporated (Nasdaq:VICL) announced today the issuance of U.S. Patent No. 7,470,675 covering the composition, delivery and use of gene-based interferon-omega. Interferon-omega is part of the interferon family of proteins which are naturally produced by the immune system. Several interferons have been approved as treatments for infectious diseases, cancer and other diseases. They typically work by directing the immune system to target foreign agents in the body and interrupt their normal growth processes.
