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The history of smallpox extends into pre-history. [1] Genetic evidence suggests that the smallpox virus emerged 3,000 to 4,000 years ago. [2]
Smallpox was an infectious disease caused by variola virus (often called smallpox virus), which belongs to the genus Orthopoxvirus. [7] [11] The last naturally occurring case was diagnosed in October 1977, and the World Health Organization (WHO) certified the global eradication of the disease in 1980, [10] making smallpox the only human disease to have been eradicated to date.
The New World of the Western Hemisphere was devastated by the 1775–1782 North American smallpox epidemic. Estimates based on remnant settlements say at least 130,000 people were estimated to have died in the epidemic that started in 1775.
It only took 181 years to eradicate smallpox once we had a way to inoculate against it and we’re still not ... the virus probably didn’t come from a cow. Jenner did collect pus from a cow, so ...
Theories alleging an origin from the Plains Indians rely on reports by missionaries and fur traders during the early 19th century describing the epidemic as coming from the plains during mountain-crossing bison hunts. A large scale smallpox epidemic is attested among the Sioux and Blackfoot, but only beginning around 1780. Accounts by native ...
Aztec smallpox victims. The history of smallpox in Mexico spans approximately 430 years from the arrival of the Spanish to the official eradication in 1951. It was brought to what is now Mexico by the Spanish, then spread to the center of Mexico, where it became a significant factor in the fall of Tenochtitlan. During the colonial period, there ...
Ratner notes that when Puritan minister Cotton Mather advocated publicly in 1721 for variolation, an early form of smallpox vaccination, a grenade came crashing through his window bearing a note ...
Wait, does the smallpox vaccine protect you from monkeypox — Ifrah F. Ahmed (@Ifrahmed) July 28, 2022