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Variolation was the practice of introducing smallpox virus into the body to induce immunity, dating back to ancient China and India. Learn about the origins, techniques, spread, and decline of variolation, and how it differed from vaccination.
variolation, obsolete method of immunizing patients against smallpox by infecting them with substance from the pustules of patients with a mild form of the disease (variola minor). The disease then usually occurs in a less-dangerous form than when contracted naturally.
Learn how variolation, a practice of transferring smallpox material to healthy people, evolved into vaccination, a method of using cowpox material to prevent smallpox. Discover how variolation and vaccination contributed to the global eradication of smallpox in 1977.
Variolation is a technique of inoculating material from smallpox pustules into healthy people to induce immunity. Learn about the history, risks, and alternatives of variolation from various chapters and articles on ScienceDirect.
8 kwi 2022 · Variolation is an outdated technique of transferring smallpox virus to protect people from infection. Learn about its history, risks, and how it was replaced by vaccination, a more effective strategy.
Variolation is the deliberate inoculation of an uninfected person with the smallpox virus to prevent severe disease. Learn more about the history and practice of variolation from Merriam-Webster Medical Dictionary.
28 wrz 2020 · Variolation, or inoculation, was a procedure of introducing smallpox material into the skin to confer protection. Learn how variolation emerged in different parts of the world and led to the development of vaccines.
