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5 sie 2022 · Smallpox is a serious and often deadly viral infection. It's contagious — meaning it spreads from person to person — and can cause permanent scarring. Sometimes, it causes disfigurement. Smallpox has affected humans for thousands of years but was wiped out worldwide by 1980 thanks to smallpox vaccines.
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 t...
Smallpox is an acute contagious disease caused by the variola virus, a member of the orthopoxvirus family. It was one of the most devastating diseases known to humanity and caused millions of deaths before it was eradicated. It is believed to have existed for at least 3000 years.
28 cze 2016 · Smallpox is an ancient disease caused by the variola virus. Early symptoms include high fever and fatigue. The virus then produces a characteristic rash, particularly on the face, arms and legs.
28 lut 2022 · Smallpox was a severe infectious disease that affected humans for thousands of years before its eradication in the late 20th century. The symptoms included a distinctive rash, pustules, and...
11 paź 2024 · smallpox, acute infectious disease that begins with a high fever, headache, and back pain and then proceeds to an eruption on the skin that leaves the face and limbs covered with cratered pockmarks, or pox. For centuries smallpox was one of the world’s most-dreaded plagues, killing as many as 30 percent of its victims, most of them children.
7 cze 2016 · Before smallpox was eradicated, it was a serious infectious disease caused by the variola virus. It was contagious—meaning, it spread from one person to another. People who had smallpox had a fever and a distinctive, progressive skin rash. Most people with smallpox recovered, but about 3 out of every 10 people with the disease died.
