Physicians and nurses reported cases where patients near death were saved with penicillin infusion. Death by infectious bacterial diseases was one twentieth of what they were in 1900. Before antibiotics were discovered, it was common for people to die from an infection from a scratch. Before antibiotics, the case fatality rate of pneumonia was estimated to be 30%-40%, the major killer became a treatable disease. The United States shared penicillin with countries for military and civilian use at affordable prices, improving public health worldwide.