Original uploader was Bobak at the English Wikipedia · Public domain

Developed the oral polio vaccine, a live attenuated formula given as drops rather than an injection, which made mass immunization practical enough to bring the disease to the edge of eradication worldwide. Born Abram Saperstejn in Poland, he emigrated to the United States as a child. From 1969 to 1972 he served as president of the Weizmann Institute of Science in Israel.