On Smallpox Wikipedia says
Smallpox is an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor The disease
On History of smallpox Wikipedia says
The history of smallpox extends into pre-history; the disease likely emerged in human population s about 10,000 B.C The earliest credible
On Mozart and smallpox Wikipedia says
In 1767, the 11-year old composer Wolfgang Amadeus Mozart was struck by smallpox . Like all smallpox victims, he was at serious risk of
On Wikipedia says
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