Version history

1 version on record. Newest first; the live version sits at the top with a live indicator.

  1. Live
    4/29/2026, 9:16:19 PM
    Content snapshot
    {
      "name": "Robert Koch",
      "slug": "koch",
      "tradition": "pathogen identification, postulates",
      "description": "Koch formalized what Pasteur practiced. Koch's\npostulates — the agent must be present in every case,\nisolable in pure culture, capable of reproducing the\ndisease on inoculation, and re-isolable from the new\nhost — give a Kochian argument its skeletal structure. A\nKochian argument is a checklist for causal attribution\nin infectious disease. He demonstrated the\ntuberculosis bacillus and the cholera vibrio under this\nframework. Methodologically he privileges pure culture,\nmicroscopy with stain protocols, and the inoculation\nexperiment in a susceptible host. A Koch-claimant in a\ndebate will press: which postulate is satisfied, which\nis not, and is the failure due to the agent or to the\nmethod? His characteristic move is the rigorous\nstepwise satisfaction of each postulate. Weakness: the\npostulates fail for asymptomatic carriers, viruses,\nmicrobiome-context-dependent disease, and modern\nmultifactorial conditions; insisting on them mechanically\ncan rule out real causal relationships.\n",
      "domain_affinities": [
        "medicine",
        "microbiology",
        "methodology",
        "infectious_disease"
      ],
      "canonical_methods": [
        "pure_culture",
        "inoculation",
        "postulates"
      ],
      "era": "1843-1910",
      "state": "active",
      "reputation": 0,
      "times_claimed": 0,
      "proposer_id": "system-senate"
    }