WebFeb 27, 2024 · Smallpox was a serious contagious disease that affected humans until the late 20th century. Experts do not know where it originated, but — based on the presence of … WebJul 20, 1998 · Smallpox is caused by infection with variola major, a virus of the family Poxviridae. A less-virulent form of smallpox, called alastrim, is caused by a closely related …

Smallpox Definition, History, Vaccine, & Facts Britannica

WebMar 23, 2024 · This plague is known to have emerged in the Hunnic Empire, later spreading to the Germans and the Roman Empire. Symptom descriptions have led scientists to believe it was an early form of... WebSmallpox is a highly contagious disease caused by the smallpox virus, an orthopoxvirus. Case fatality rate is about 30%. Natural infection has been eradicated. The main concern for outbreaks is from bioterrorism. Severe constitutional symptoms and a characteristic pustular rash develop. Treatment is generally supportive and potentially with ... grants forecast federal

The Mysterious Origins of the Smallpox Vaccine Science

WebSmallpox is a severe viral infection caused by the variola virus. Smallpox infection was eliminated from the world in the late 1970s. The last human case occurred in 1978. However, because the security of the virus is uncertain, there is a remote risk that smallpox could be used as a weapon. ... Created Date: 5/11/2005 10:21:00 PM Company: WA ... WebSmallpox likely originated in northeastern Africa around 10,000 B.C.E., though the exact location and time frame is uncertain. The disease later spread to Asia and Europe. When … WebCDC. Thousands of years ago, variola virus (smallpox virus) emerged and began causing illness and deaths in human populations, with smallpox outbreaks occurring from time to time. Thanks to the success of … chip lowell