First Polio Epidemic
In 1894, the first recognized U.S. polio epidemic occurred in Vermont with 132 total cases (18 deaths), including several cases in adults.
In the early 20th century, polio outbreaks gradually became more severe and widespread throughout Europe and the United States. Outbreaks were recorded in areas with high standards of living and where other diseases such as diptheria and typhoid were in decline. Researchers speculate that children were exposed to polio less frequently than in the past thus making them more susceptible to infection.
References
Beaubien, Jason. "Wiping Out Polio: How the U.S. Snuffed Out a Killer." NPR All Things Considered.
Wilson, D. J. (2009). Polio. ABC-CLIO.
