variolization
Học thuậtThân thiện
Definition
Noun: * The obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox: A historical method of immunization against smallpox, involving the deliberate introduction of infectious material from a smallpox pustule into the skin of a healthy individual to induce a milder, controlled case of the disease and confer future immunity.
Usage
- Variolization was a precursor to modern vaccination. It was practiced for centuries before Edward Jenner's development of the safer cowpox-based vaccine.
- The term is used exclusively in historical and medical contexts to describe this specific, outdated procedure.
- Example: "Before the discovery of the cowpox vaccine, variolization was a common, though risky, practice in some parts of the world to prevent severe smallpox."
Advanced Usage
- The procedure is also known historically as inoculation (in the specific context of smallpox) or engraftment.
- Variolization carried significant risk, as it could sometimes cause a severe or even fatal case of smallpox in the inoculated person and could also spread the disease to others.
Variants and Related Words
- Variolate (verb, obsolete): To inoculate with the smallpox virus.
- Variola (noun): The medical term for the smallpox virus.
- Vaccination (noun): The modern, safer procedure developed by Jenner, using the cowpox virus (Vaccinia) to immunize against smallpox. This term has since broadened to refer to immunization against other diseases.
Synonyms
- Inoculation (in historical smallpox context)
- Engraftment (historical term)
Notes on Meaning
- Variolization refers strictly to the historical practice using smallpox virus material. It is distinct from vaccination, which uses a related but different virus (cowpox) that is much safer. The two terms are not interchangeable in precise historical or medical writing.
Noun
- the obsolete process of inoculating a susceptible person with material taken from a vesicle of a person who has smallpox