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en.wikipedia.org/wiki/Smallpox

The earliest credible clinical evidence of smallpox is found in the smallpox-like disease in medical writings from ancient ...

www.cdc.gov/smallpox/index.html

Jul 12, 2017 ... Thousands of years ago, variola virus (smallpox virus) emerged and began causing illness and deaths in human populations, with smallpox ...

www.cdc.gov/smallpox/history/history.html

Aug 30, 2016 ... The earliest written description of a disease that clearly resembles smallpox appeared in China in the 4th century CE (Common Era).

www.who.int/csr/disease/smallpox/en

Smallpox is an acute contagious disease caused by the variola virus, a member of the orthopoxvirus family. It was one of the world's most devastating diseases ...

www.healthline.com/health/smallpox

Jan 4, 2016 ... Smallpox is an extremely contagious and deadly virus for which there is no known cure. This disease has been completely eradicated.

www.who.int/csr/disease/smallpox/faq/en

Jun 28, 2016 ... Smallpox is an ancient disease caused by the variola virus. Early symptoms include high fever and fatigue. The virus then produces a ...

www.mayoclinic.org/diseases-conditions/smallpox/symptoms-causes/syc-20353027

Jul 26, 2017 ... Overview. Smallpox is a contagious, disfiguring and often deadly disease that has affected humans for thousands of years. Naturally occurring ...

kidshealth.org/en/kids/smallpox.html

Smallpox is a very serious illness caused by a virus called the variola (say: vair- ee-OH-luh) virus. Smallpox gets its name from the pus-filled blisters (or pocks) ...

www.medicinenet.com/smallpox/article.htm

Smallpox is a disease caused by the variola virus. Symptoms and signs include a characteristic rash and high fever. Read about vaccine side effects, history and ...