1952 Polio Epidemic

1952 Polio Epidemic

During the 1952 polio epidemic in Denmark, the mortality rate was over 85% due to a shortage of respirators. Dr. Bjorn Ibsen invented a new kind of ventilator, proved it worked, and then recruited thousands of volunteers to hand-pump them for weeks (they were fully manual). Due to his invention, the mortality rate fell to 26%.

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