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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 .
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.
Mpox belongs to the same family of viruses as smallpox but causes milder symptoms like fever, chills and body aches. People with more serious cases can develop lesions on the face, hands, chest ...
Smallpox was an infectious disease caused by two strains of virus, Variola major and V. minor. V. minor was the rarer of the two strains, and causes a much less severe disease (sometimes called alastrim), with a fatality rate of around 1%. No treatment is available, and the only protection is vaccination. The virus is usually transmitted by ...
Rewind 600 years ago when people attempted to keep themselves healthy by exposing themselves to others inflicted with smallpox, known as variolation; some experts believe the practice was done as ...
Two outbreaks of the disease, which is caused by a virus in the same family as the one that causes smallpox, were discovered in monkeys that were being kept for research. The first human case ...
The vaccinia virus is the source of the modern smallpox vaccine, which the World Health Organization (WHO) used to eradicate smallpox in a global vaccination campaign in 1958–1977. Although smallpox no longer exists in the wild, vaccinia virus is still studied widely by scientists as a tool for gene therapy and genetic engineering.
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