зроби до 10 слайдів презентації англіською для рівні В1 про вченного Джонаса Салка

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Jonas Salk, a visionary scientist, dedicated his life to combating the polio crisis of the 1950s with the goal of protecting every child. He developed the polio vaccine by testing three virus types, culminating in a groundbreaking 1954 trial involving 1.8 million children, which proved the vaccine's effectiveness in 1955. The impact was profound, with polio cases dropping by over 99%. Salk's work highlights the importance of public funding in scientific discovery and serves as a reminder that...