Definition
The Sabin vaccine is an oral polio vaccine (OPV) developed by Albert Sabin. It contains live, weakened (attenuated) poliovirus strains. This vaccine is administered orally, making it easier to distribute than injected vaccines. It stimulates the immune system to create antibodies against polio. The Sabin vaccine played a major role in eradicating polio worldwide. The Salk vaccine is another polio vaccine, but uses inactivated virus.