Albert Sabin and prove its extraordinary effectiveness and safety. The Sabin vaccine worked in the intestines to block the poliovirus from entering the bloodstream. In the intestines, Sabin had discovered, the poliovirus multiplied and attacked. Thus, the oral vaccine broke the chain of transmission of the virus and allowed for the possibility that polio might one day be eradicated. Between 1955 and 1961, the oral vaccine was tested on at least 100 million people in the USSR, parts of Eastern Europe, Singapore, Mexico, and the Netherlands. The first industrial production and mass use of oral poliovirus vaccine (OPV) from Sabin strains was
Sabin of Bulgaria Pagan, but the emperor's words on behalf of the former monarch made little impression. Sabin passed the remainder of his life in exile. Sabin of Bulgaria Sabin () was the ruler of Bulgaria from 765 to 766. Some scholars think that Sabin was omitted from the Namelist of Bulgarian Rulers because he was a Slav, but his name could indicate Latin or even Iranian origins. He was related by marriage to Kormisosh, who was either a father-in-law or a brother-in-law of Sabin. Since the relation is by marriage, Sabin would not have actually belonged to the Vokil (=Ukil?) clan. Sabin