Bielefeld University Oct 21 2025 October 24 marks World Polio Day. The vaccination against poliomyelitis is considered one of the greatest achievements in preventive medicine. It has prevented millions of cases of paralysis and saved hundreds of thousands of lives. It has pushed back a disease that, in the 1950s, still paralyzed thousands of children in Germany and caused many deaths. A recent study published in the Deutsches Ärzteblatt now shows: Despite these unprecedented successes,