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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.
Diseases associated with this genus include smallpox, cowpox, horsepox, camelpox, and mpox. [ 1 ] [ 2 ] The most widely known member of the genus is Variola virus , which causes smallpox. It was eradicated globally by 1977, through the use of Vaccinia virus as a vaccine .
If the file has been modified from its original state, some details may not fully reflect the modified file. Short title V0031469 Gloucester smallpox epidemic, 1896
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The Massachusetts smallpox epidemic or colonial epidemic was a smallpox outbreak that hit Massachusetts in 1633. [1] Smallpox outbreaks were not confined to 1633 however, and occurred nearly every ten years. [2] Smallpox was caused by two different types of variola viruses: variola major and variola minor. [3]
The Centers for Disease Control reports that there have been more than 22,400 cases across 79 countries around the world. Almost 99% of monkeypox cases from the current outbreak have been reported ...
Smallpox was a dangerous disease caused by the variola major virus. The most common type of smallpox, ordinary, historically has devastated populations with a 30% death rate. The smallpox virus is transmittable through bodily fluids and materials contaminated with infected materials.
By Christy Santhosh (Reuters) -The U.S. Food and Drug Administration granted expanded approval to Emergent BioSolutions' smallpox vaccine for use in people at high risk of mpox infection.