Jonas Salk: The Doctor Who Conquered Polio

Engineering | Science | Technology on Instagram: "Iron Lung Survivor | The Man Who Hasn’t Breathed On His Own Since 1952 In 1952, six-year-old Paul Alexander contracted polio, leaving him paralyzed and unable to breathe without an iron lung. For over 70 years, this machine has kept him alive using negative pressure ventilation. But Paul’s story is more than survival—he taught himself to breathe briefly outside the lung, became a lawyer, wrote a memoir, and even typed using a pen in his mouth. He