"Working independently, both the mysterious syndicate and a group of Russians have been trying to formulate an effective vaccine against the black oil virus. While the syndicate's efforts have not proved successful, the Russians have shown satisfying results. A sample of the Russian vaccine was stolen by a traitorous former employee of the Syndicate - Krycek. He surrendered this sample to the Well-manicured man in exchange for his own life. It is not known if the vaccine that the syndicate now employs is the same as the Russian vaccine or one of they've newly developed."