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Spanish flu
This flu has become the most massive epidemic of all time, both in the number of people infected and in the number of people who died. During the 18 months of the epidemic’s rampage, about 550 million people, or 29.5% of the world’s population, were infected. Of these, 50-100 million died, and thus the mortality rate from influenza was 10-20%. The main reason for the development of the pandemic is post-war disruption and unsanitary conditions, as well as poor nutrition. The epidemic acquired its characteristic name because of the strong outbreak that first appeared on the territory of Spain.
