In India, the mortality rate reached 50 deaths per 1,000 people — a shocking figure.
Potential origins Despite its name, historical and data cannot identify the geographic origin of the Spanish flu.
The study did find evidence through that the virus likely had a North American origin, though it was not conclusive.
The Journal of Infectious Diseases.
However, death rates varied among different groups.
Specifically, a significant increase in precipitation affected all of Europe during the second wave of the pandemic, from September to December 1918.