Edward Jenner full-blown infection. Later, he injected Phipps with variolous material, the routine method of immunization at that time. No disease followed. The boy was later challenged with variolous material and again showed no sign of infection. Donald Hopkins has written, "Jenner's unique contribution was not that he inoculated a few persons with cowpox, but that he then proved [by subsequent challenges] that they were immune to smallpox. Moreover, he demonstrated that the protective cowpox pus could be effectively inoculated from person to person, not just directly from cattle. Jenner successfully tested his hypothesis on 23 additional subjects. Jenner continued his research
Thomas Jenner (publisher) Jenner published a series of tracts entitled "A further Narrative of the Passages of these Times", containing an engraving of the populace pulling down Cheapside Cross, together with portraits of Oliver Cromwell, Francis Manners, 6th Earl of Rutland, and Sir William Wadd, Constable of the Tower, signed "Thomas Jenner fecit". In 1650 he issued "A Work for none but Angels and Men, that is to be able to look into and know ourselves. Or a Booke showing what the Soule is". According to Thomas Corser it is a prose translation of Sir John Davies's poem on the immortality of the