"Smallpox was an infectious disease caused by one of two virus variants, Variola major and Variola minor. 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] The risk of death following contracting the disease was about 30%, with higher rates among babies.[11] Often those who survived had extensive scarring of their skin, and some were left blind.
The initial symptoms of the disease included fever and vomiting. This was followed by formation of sores in the mouth and a skin rash. Over a number of days the skin rash turned into characteristic fluid-filled bumps with a dent in the center. The bumps then scabbed over and fell off, leaving scars. The disease was spread between people or via contaminated objects.[12] Prevention was by the smallpox vaccine. Once the disease had developed, certain antiviral medication may have helped." - (en.wikipedia.org 28.03.2020)
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