Polio vaccine is usually provided in vials containing 10–20 doses of vaccine. A single dose of oral polio vaccine (usually two drops) contains 1,000,000 infectious units of Sabin 1 (effective against PV1), 100,000 infectious units of the Sabin 2 strain, and 600,000 infectious units of Sabin 3. The vaccine contains small traces of antibiotics—neomycin and streptomycin—but does not contain preservatives. In a generic sense, vaccination works by priming the immune system with an 'immunogen'. Stimulating immune response, by use of an infectious agent, is known as immunization. The development of immunity to polio efficiently blocks person-to-person transmission of wild poliovirus, thereby protecting
Sabin Vaccine Institute "childhood cognitive development among the poor, thereby reinforcing poverty." Sabin works with experts and organizations from around the world to advance knowledge of both infectious diseases and the vaccines that can prevent them. Through the International Association of Immunization Managers (IAIM) Network, Sabin arranges international forums to improve the success rates of immunization programs. Sabin serves as the Secretariat for the Coalition against Typhoid whose mission is to raise awareness of Typhoid and Salmonellosis. First awarded in 1994, the Albert B. Sabin Gold Medal is presented by Sabin each year to one or more persons who have made a major