1918-19 Spanish Flu Ambulance (IMAGE) Georgia Institute of Technology Caption An ambulance in St. Louis, Missouri, picks up a patient believed to be infected with influenza in the 1918-19 Spanish flu pandemic, which killed 50 million people or more worldwide. Credit National Archives (US) Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.