Hektoen International

A Journal of Medical Humanities

Tag: Salmonella typhi

  • 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…

  • Borderline

    William MarshallTucson, Arizona, United States When family and friends from back East ask me about the Arizona/Mexico border, two images come to mind: first, an almost unlimited view of blue sky and distant mountains; second, a sick, frightened teenage boy sitting on an exam table in the urgent-care clinic. Hiking among the pines on the…