Even the high-end polio vaccines used in Western nations are linked to injuries and illnesses that dwarf historical harms from polio. A short list of these include the highly contagious SV-40 monkey virus140 that scientists believe is responsible for the explosion of deadly soft tissue cancers in baby boomers and the Chimpanzee coryza agent that entered polio vaccines at the Walter Reed Hospital laboratories in 1955 and caused the devastating pandemic of respiratory syncitial virus (RSV) that the WHO estimates today causes 3 million hospitalizations annually and 60,000 deaths in children
