first appeared in China and the Far East at least 2000 years ago.
The Pharaoh Ramses V died of smallpox in 1157 B.C.
reached Europe in 710 A.D. and was transferred to America by Hernando Cortez in 1520.
3,500,000 Aztecs died in the next 2 years.
reached plague proportions in the cities of 18th century Europe and was a highly feared scourge.
killed five reigning European monarchs during the 18th century.
has now been eradicated.
The last naturally occurring outbreak was in Somalia on 26th October 1977.
How did they do that ?