
Salk
Dr. Jonas Salk was a pioneering American medical researcher best known for developing the first successful polio vaccine in the 1950s, significantly reducing the incidence of the disease worldwide.
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Jonas Salk is mentioned for developing the polio vaccine.
Мамо, дали сум терорист? Не, сине, функционер си мајкинНова Македонија (Nova Makedonija)·
North Macedonia· 2026-08-07









