Tag Archives: Polio Vaccine

This day in history — April 12, 1955 — Researchers Announce Polio Vaccine, Developed from Henrietta Lacks’Cells

On April 12, 1955, Dr. Thomas Francis Jr. and Dr. Jonas Salk announced the successful results of the first polio vaccine. Researchers developed the vaccine using cells from the HeLa cell line, cells derived from the cancerous tissues of Henrietta … Continue reading

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