Smallpox

1900 to eradication. Declared eradicated May 8, 1980. 300 million smallpox deaths between 1900 and eradication would mean that, out of 4,713,503,215 worldwide deaths between 1900 and 1995, 6.36% were from smallpox. Applied to the estimated total of ca. 95 billion deaths between 50000 BC and 1900, this would mean that over 6 billion deaths in this period were from smallpox.