Hektoen International

A Journal of Medical Humanities

Tag: Tropheryma whipplei.

  • Koch’s postulates revisited

    JMS PearceHull, England Van Leeuwenhoek (1632–1722), a Dutch botanist, using his early microscope observed single-celled bacteria, which he reported to the Royal Society as animalcules. The science of bacteriology owes its origin to two scientists of coruscating originality, Louis Pasteur and Robert Koch. Pasteur may be described as master-architect and Koch as master-builder of the…