CEL-SCI Corporation is engaged in the research and development at developing the treatment of cancer and other diseases by using the immune system. The Company is focused on activating the immune system to fight cancer and infectious diseases. It operates through the segment of research and development of certain drugs and vaccines. It is focused on the development of Multikine (Leukocyte Interleukin, Injection), an investigational immunotherapy under development for treatment of certain head and neck cancers, and anal warts or cervical dysplasia in human immunodeficiency virus and human papillomavirus co-infected patients and Ligand Epitope Antigen Presentation System (L.E.A.P.S.) technology, with over two investigational therapies, LEAPS-H1N1-DC, a product candidate under development for treatment of pandemic influenza in hospitalized patients, and CEL-2000 and CEL-4000, vaccine product candidates under development for treatment of rheumatoid arthritis.