The first observations of mortality were observed in Kansas in March 1918, but then in April it was already in France, Germany, and the UK. The first recorded c

The first observations of mortality were observed in Kansas in March 1918, but then in April it was already in France, Germany, and the UK. The first recorded case was an army cook in Kansas, but researchers believe there were likely cases before this. So, it's hard to know for sure exactly where the index case arose.