{
  "vercy": "1.0-draft",
  "publication": {
    "status": "research-draft",
    "adjudicationStatus": "unreviewed",
    "publishableCanonical": false,
    "generatedAt": "2026-09-11T04:26:33Z",
    "providers": [
      "Claude"
    ],
    "breadth": "written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify",
    "pass": 2,
    "wave": 1,
    "engine": "claude"
  },
  "metaModel": {
    "id": "THING-Q18123741",
    "registryId": "vr.tr.infectious-disease",
    "name": "infectious disease",
    "version": "0.2.0-wave.1",
    "entryKind": "thing",
    "family": "Thing Registry",
    "domain": [
      "XCT.STA"
    ],
    "status": "research-draft"
  },
  "canonicalUrl": "https://ver.cy/models/thing/q18123741/",
  "model": {
    "registry_id": "vr.tr.infectious-disease",
    "name": "infectious disease",
    "purpose": "Let an agent reason about infectious diseases through pathogen, transmission, case definition and notification duties, and never offer diagnosis or treatment decisions.",
    "definition": "A disease caused by a pathogen, a bacterium, virus, fungus, parasite or prion, that can be transmitted from one host to another directly or through a vector or the environment.",
    "what_it_is_for": "Organising knowledge about diseases whose spread between hosts makes them a public health matter as well as a personal one.",
    "affordances": [
      "diagnose it, which only qualified professionals may do",
      "notify it, where law makes it a notifiable disease",
      "prevent it, by vaccination, hygiene, vector control and treatment",
      "track it, through surveillance and case counts"
    ],
    "distinguishing_features": [
      "Caused by a pathogen and transmissible, unlike non-communicable diseases",
      "Carries public health duties such as notification and isolation",
      "Defined for surveillance by case definitions that differ from clinical diagnosis",
      "Can be zoonotic, passing between animals and humans"
    ],
    "appearance": "No single appearance: signs vary with the pathogen; many infections are asymptomatic. Laboratory tests, not appearance, confirm them.",
    "visual_identification": [
      "Symptoms suggest but do not establish an infection",
      "Confirmation needs a laboratory test or a clinical case definition",
      "Outbreaks are recognised by case clustering in time and place"
    ],
    "physical_properties": [
      {
        "quantity": "incubation period",
        "typical_range": "hours to years",
        "unit": "time",
        "note": "varies widely by pathogen"
      },
      {
        "quantity": "basic reproduction number R0",
        "typical_range": "0.5-18",
        "unit": "secondary cases",
        "note": "measles is at the high end"
      }
    ],
    "families_and_kinds": [
      "by pathogen: bacterial, viral, fungal, parasitic, prion",
      "by route: airborne, droplet, contact, faecal-oral, vector-borne, bloodborne, sexual",
      "by host range: human only, zoonotic",
      "by status: endemic, epidemic, pandemic, eliminated, eradicated"
    ],
    "related_models": [
      {
        "relation": "is a kind of",
        "target": "disease",
        "why": "inherits classification, diagnosis and treatment questions"
      },
      {
        "relation": "is caused by",
        "target": "pathogen",
        "why": "the organism or agent is a separate model"
      },
      {
        "relation": "is spread by",
        "target": "vector",
        "why": "insects and other vectors are separate models"
      },
      {
        "relation": "is prevented by",
        "target": "vaccine",
        "why": "vaccines are separate models with their own regulation"
      }
    ],
    "identifiers": [
      {
        "scheme": "ICD-11 code",
        "value_or_pattern": "chapter 1 codes such as 1A00",
        "note": "WHO classification of diseases"
      },
      {
        "scheme": "SNOMED CT concept",
        "value_or_pattern": "numeric concept id",
        "note": "clinical terminology"
      }
    ],
    "standards_and_regulation": [
      "International Health Regulations (2005)",
      "National notifiable disease lists and reporting rules",
      "WHO ICD-11 classification"
    ],
    "failure_modes_and_hazards": [
      "Presenting an agent answer as a diagnosis or a treatment decision",
      "Mixing clinical diagnosis and surveillance case definitions",
      "Stigmatising language or disclosure of an individual health status",
      "Out-of-date guidance during a fast-moving outbreak"
    ],
    "in_scope": [],
    "out_of_scope": [],
    "characteristics": []
  },
  "sources": [
    {
      "id": "wikidata",
      "title": "Wikidata item Q18123741: infectious disease",
      "url": "https://www.wikidata.org/wiki/Q18123741",
      "url_status": "live",
      "what_it_supports": "identity and sense of the item",
      "checked_by": "wikidata-api"
    },
    {
      "id": "wikipedia-en",
      "title": "Wikipedia: Infectious disease",
      "url": "https://en.wikipedia.org/wiki/Infectious_disease",
      "url_status": "live",
      "what_it_supports": "general description of the item",
      "checked_by": "wikidata-api sitelink"
    }
  ],
  "structure": {
    "bundles": [
      {
        "id": "pathogen-and-transmission",
        "name": "Pathogen and transmission",
        "description": "What causes it and how it spreads.",
        "rationale": "Every intervention against an infectious disease depends on knowing the pathogen and the route.",
        "layers": [
          {
            "id": "pathogen",
            "name": "Pathogen",
            "description": "The causative agent.",
            "findings": [
              {
                "id": "pathogen-finding",
                "name": "Causative agent",
                "description": "The pathogen and its classification.",
                "questions": [
                  {
                    "text": "Which pathogen causes this disease?",
                    "kind": "definition"
                  },
                  {
                    "text": "Are there strains or variants that behave differently?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "route",
            "name": "Transmission route",
            "description": "How it passes between hosts.",
            "findings": [
              {
                "id": "route-finding",
                "name": "Routes and reservoirs",
                "description": "The routes of transmission and animal reservoirs.",
                "questions": [
                  {
                    "text": "By which routes is it transmitted?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is there an animal reservoir or vector?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "case-definition",
        "name": "Case definition and diagnosis",
        "description": "How a case is recognised.",
        "rationale": "Surveillance counts cases by definitions that differ from bedside diagnosis; the two must stay separate.",
        "layers": [
          {
            "id": "definition",
            "name": "Case definition",
            "description": "Criteria for counting a case.",
            "findings": [
              {
                "id": "definition-finding",
                "name": "Surveillance definition",
                "description": "The confirmed, probable and suspected criteria.",
                "questions": [
                  {
                    "text": "What is the case definition used for surveillance, and by whom?",
                    "kind": "provenance"
                  },
                  {
                    "text": "How does it differ from clinical diagnosis?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          },
          {
            "id": "testing",
            "name": "Testing",
            "description": "Laboratory confirmation.",
            "findings": [
              {
                "id": "testing-finding",
                "name": "Test methods",
                "description": "The tests used and their accuracy.",
                "questions": [
                  {
                    "text": "Which tests confirm this infection, and how accurate are they?",
                    "kind": "measurement"
                  },
                  {
                    "text": "What must an agent refer to a clinician rather than answer?",
                    "kind": "action"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "prevention-and-control",
        "name": "Prevention and control",
        "description": "Stopping spread.",
        "rationale": "Control measures are specific to the pathogen and route; generic advice is often wrong.",
        "layers": [
          {
            "id": "prevention",
            "name": "Prevention",
            "description": "Vaccines, hygiene and vector control.",
            "findings": [
              {
                "id": "prevention-finding",
                "name": "Preventive measures",
                "description": "The measures that reduce transmission.",
                "questions": [
                  {
                    "text": "Which preventive measures work against this disease?",
                    "kind": "definition"
                  },
                  {
                    "text": "Is a vaccine available, and for whom is it recommended?",
                    "kind": "definition"
                  }
                ]
              }
            ]
          },
          {
            "id": "control",
            "name": "Outbreak control",
            "description": "Isolation, tracing and treatment.",
            "findings": [
              {
                "id": "control-finding",
                "name": "Control measures",
                "description": "The measures used once cases occur.",
                "questions": [
                  {
                    "text": "What control measures apply once cases occur?",
                    "kind": "action"
                  },
                  {
                    "text": "Who has authority to impose them?",
                    "kind": "provenance"
                  }
                ]
              }
            ]
          }
        ]
      },
      {
        "id": "surveillance-and-duty",
        "name": "Surveillance and duties",
        "description": "Tracking and legal obligations.",
        "rationale": "Notifiable status creates legal duties and privacy constraints that an agent must respect.",
        "layers": [
          {
            "id": "surveillance",
            "name": "Surveillance",
            "description": "Counts and trends.",
            "findings": [
              {
                "id": "surveillance-finding",
                "name": "Surveillance data",
                "description": "The case counts and their source.",
                "questions": [
                  {
                    "text": "What do current surveillance data show, and from which source?",
                    "kind": "measurement"
                  },
                  {
                    "text": "How complete is reporting?",
                    "kind": "measurement"
                  }
                ]
              }
            ]
          },
          {
            "id": "duties",
            "name": "Notification and privacy",
            "description": "Legal duties and limits.",
            "findings": [
              {
                "id": "duties-finding",
                "name": "Duties and privacy",
                "description": "Notification duties and constraints on disclosure.",
                "questions": [
                  {
                    "text": "Is this disease notifiable here, and who must notify?",
                    "kind": "provenance"
                  },
                  {
                    "text": "What information about individuals must not be disclosed?",
                    "kind": "boundary"
                  }
                ]
              }
            ]
          }
        ]
      }
    ]
  },
  "openQuestions": [
    "Should each infectious disease link to its pathogen as a required relation?",
    "How should the registry mark guidance that changes during an outbreak?",
    "Which notification duties should the model carry per jurisdiction?"
  ],
  "statistics": {
    "bundles": 4,
    "layers": 8,
    "findings": 8,
    "questions": 16
  }
}
