variolator

variolator

(ˈvɛərɪəˌleɪtɔː)
n
(Medicine) (before the introduction of vaccinations) someone who caused exposure to the smallpox virus to people (by, for example, collecting pus of affected patients) so as to promote immunity
References in periodicals archive ?
However, during the era of eradication, 45 scab specimens were collected from variolators and tested 9 months after collection; live virus was not isolated from any of the specimens (35).
Jenner made his work freely available, which antagonised some variolators who saw the loss of a lucrative monopoly.