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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 history of smallpox extends into pre-history. [ 1] Genetic evidence suggests that the smallpox virus emerged 3,000 to 4,000 years ago. [ 2] Prior to that, similar ancestral viruses circulated, but possibly only in other mammals, and possibly with different symptoms. Only a few written reports dating from about 500 AD to 1000 AD are ...
George Washington by Charles Willson Peale, 1776. 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. [ 1]
Edward Jenner FRS FRCPE [ 1] (17 May 1749 – 26 January 1823) was an English physician and scientist who pioneered the concept of vaccines and created the smallpox vaccine, the world's first vaccine. [ 2][ 3] The terms vaccine and vaccination are derived from Variolae vaccinae ('pustules of the cow'), the term devised by Jenner to denote cowpox.
Collapse of population in Mexico during the 16th century, attributed to repeated epidemics of smallpox and cocoliztli. Mexico's native population was one of the first to experience a smallpox epidemic, where many succumbed to the disease. In 1520, the first wave of smallpox killed 5-8 million people. From 1545 to 1576, up to 17 million people ...
The FBI and the Center for Disease Control and Prevention are investigating “questionable vials” labeled "smallpox" and found in a freezer last night at a Merck facility outside Philadelphia.
The 1947 New York City smallpox outbreak occurred in March 1947 and was declared ended on April 24, 1947. The outbreak marked the largest mass vaccination effort ever conducted for smallpox in America. Within three weeks of the discovery of the outbreak, the U.S. Public Health Service, in conjunction with New York City health officials, had ...
The short answer is yes. According to the CDC, monkeypox is closely related to the virus that causes smallpox. Both the CDC and the WHO have published data showing that the smallpox vaccine is 85% ...