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  1. Smallpox - World Health Organization (WHO)

    Nov 14, 2024 · 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 …

  2. Smallpox - World Health Organization (WHO)

    Jun 28, 2016 · The virus which causes smallpox is contagious and spreads through person-to- person contact and saliva droplets in an infected person’s breath. It has an incubation period …

  3. Smallpox - National Institute of Allergy and Infectious Diseases …

    Jan 27, 2021 · Smallpox, caused by the variola virus, was a highly contagious infectious disease that caused infected individuals to develop a fever and a progressive, disfiguring skin rash. …

  4. Smallpox - World Health Organization (WHO)

    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 …

  5. History of smallpox vaccination

    One of the deadliest diseases known to humans, smallpox remains the only human disease to have been eradicated. Many believe this achievement to be the most significant milestone in …

  6. Smallpox - World Health Organization (WHO)

    Smallpox is an acute contagious disease caused by variola virus, a member of the Orthopoxvirus family. Smallpox, which is believed to have originated over 3,000 years ago in India or Egypt, …

  7. Smallpox: Clinical diagnosis - World Health Organization (WHO)

    Jun 21, 2016 · Publications of the World Health OrganizationOverview Smallpox has two main forms: variola major and variola minor. The two forms showed similar lesions. The disease …

  8. Smallpox vaccines - World Health Organization (WHO)

    Jan 3, 2014 · The history of smallpox holds a unique place in medicine. It was one of the deadliest diseases known to humans, and to date (2016) the only human disease to have been …

  9. How was smallpox wiped out? | World Economic Forum

    Apr 17, 2020 · Smallpox is the only infectious disease that’s been successfully eradicated. It was eradicated by a collaborative global vaccination programme led by the World Health …

  10. Smallpox Eradication Programme - SEP (1966-1980)

    May 1, 2010 · 2010 marks the 30th anniversary of the eradication of smallpox. Smallpox was officially declared eradicated in 1980 and is the first disease to have been fought on a global …