Did a Vaccine Experiment on U.S. Soldiers Cause the “Spanish Flu”? The 1918-19 bacterial vaccine experiment may have killed 50-100 million people. The “Spanish Flu” killed an estimated 50-100 million people during a pandemic 1918-19. What if the story we have been told about this pandemic isn’t true? What if, instead, the killer infection was neither the flu nor Spanish in origin? Newly analyzed documents reveal that the “Spanish Flu” may have been a military vaccine experiment gone awry: https://humansarefree.com/2020/08/military-experimental-vaccine-spanish-flu.html