{ "model": { "rank": 9704, "code": "thing-q162272", "model_id": "vr.tr.viral-hemorrhagic-fever", "name": "viral hemorrhagic fever", "purpose": "Let an agent explain viral haemorrhagic fevers and their causes in general terms from WHO and CDC sources, describe transmission, prevention and outbreak response, and route suspected cases to health authorities.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.QLT", "industry": "", "version": "", "url": "/models/thing/q162272/", "tier": 2, "score": 47, "payload": { "layer": "wikidata", "aliases": [ "hantavirus hemorrhagic fever", "Crimean-Congo hemorrhagic fever", "Kyasanur forest disease", "Marburg virus disease", "Whitewater Arroyo hemorrhagic fever", "arenavirus hemorrhagic fever", "cocoliztli", "Omsk hemorrhagic fever", "Alkhurma hemorrhagic fever" ], "aliasCount": 9, "merged": 9, "knownIn": 47, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": null, "source": { "dataset": "wikidata", "item": "Q162272", "url": "https://www.wikidata.org/wiki/Q162272", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-13T01:37:50Z", "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": 3, "engine": "claude" }, "metaModel": { "id": "THING-Q162272", "registryId": "vr.tr.viral-hemorrhagic-fever", "name": "viral hemorrhagic fever", "version": "0.2.0-wave.3", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.QLT" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q162272/", "model": { "registry_id": "vr.tr.viral-hemorrhagic-fever", "name": "viral hemorrhagic fever", "purpose": "Let an agent explain viral haemorrhagic fevers and their causes in general terms from WHO and CDC sources, describe transmission, prevention and outbreak response, and route suspected cases to health authorities.", "definition": "A group of severe illnesses caused by viruses from several families, including filoviruses such as Ebola and Marburg, arenaviruses such as Lassa and Whitewater Arroyo, bunyaviruses such as Crimean-Congo haemorrhagic fever and hantaviruses, and flaviviruses such as yellow fever, dengue and Kyasanur Forest disease, characterised by fever, damage to blood vessels and in severe cases bleeding and organ failure; many are zoonotic, some spread between people, and several are epidemic-prone diseases under international health rules.", "what_it_is_for": "Not applicable; a group of diseases.", "affordances": [ "explain the group and causes", "relay transmission and prevention", "relay outbreak response", "route suspected cases to authorities" ], "distinguishing_features": [ "Multiple virus families", "Zoonotic origins", "High fatality in some", "International health regulation" ], "appearance": "Not a visible object; a severe febrile illness.", "visual_identification": [ "Severe viral illnesses with vascular damage", "Ebola, Marburg, Lassa, CCHF, hantavirus, Kyasanur Forest disease and others", "Bacterial sepsis and malaria can look similar; not all cases bleed" ], "physical_properties": [ { "quantity": "Ebola case fatality", "typical_range": "about 25-90", "unit": "percent", "note": "by outbreak" }, { "quantity": "Lassa fever cases", "typical_range": "about 100000-300000", "unit": "per year", "note": "West Africa estimates" } ], "families_and_kinds": [ "filovirus diseases: Ebola and Marburg", "arenavirus haemorrhagic fevers: Lassa, Junin, Machupo, Whitewater Arroyo", "bunyavirus diseases: Crimean-Congo haemorrhagic fever, Rift Valley fever, hantavirus haemorrhagic fever with renal syndrome", "flavivirus diseases: yellow fever, severe dengue, Kyasanur Forest disease, Omsk haemorrhagic fever" ], "related_models": [ { "relation": "is a kind of", "target": "viral infectious disease", "why": "in registry terms" }, { "relation": "is a kind of", "target": "pandemic and epidemic-prone diseases", "why": "in registry terms" }, { "relation": "is caused by", "target": "RNA virus", "why": "of several families" }, { "relation": "is governed by", "target": "International Health Regulations", "why": "for outbreak reporting" } ], "identifiers": [ { "scheme": "ICD-11", "value_or_pattern": "1D60-1D6Z", "note": "viral haemorrhagic fevers" }, { "scheme": "MeSH", "value_or_pattern": "D006482", "note": "" } ], "standards_and_regulation": [ "WHO outbreak response guidance", "International Health Regulations", "Biosafety level 4 rules for some pathogens", "Vaccination programmes for yellow fever and Ebola" ], "failure_modes_and_hazards": [ "Outbreaks with high mortality", "Healthcare-associated transmission", "Agents giving personal medical advice or laboratory detail", "Stigma and misinformation" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "help", "name": "Help", "description": "Suspected cases first.", "rationale": "Safety.", "layers": [ { "id": "suspected", "name": "Suspected", "description": "Suspected cases.", "findings": [ { "id": "suspected-finding", "name": "Suspected", "description": "Suspected.", "questions": [ { "text": "What should be done if a haemorrhagic fever is suspected, per WHO guidance?", "kind": "action" }, { "text": "Is the user describing a possible case, which needs immediate contact with health authorities?", "kind": "boundary" } ] } ] }, { "id": "travel", "name": "Travel", "description": "Travel and exposure.", "findings": [ { "id": "travel-finding", "name": "Travel", "description": "Travel.", "questions": [ { "text": "What travel and exposure advice do health authorities give for affected regions?", "kind": "provenance" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] } ] }, { "id": "understand", "name": "Understand", "description": "The diseases.", "rationale": "Clinical.", "layers": [ { "id": "causes", "name": "Causes", "description": "Viruses and diseases.", "findings": [ { "id": "causes-finding", "name": "Causes", "description": "Causes.", "questions": [ { "text": "What viruses cause haemorrhagic fevers, and how do the diseases differ?", "kind": "definition" }, { "text": "Is the question about a haemorrhagic fever or another febrile illness?", "kind": "boundary" } ] } ] }, { "id": "transmission", "name": "Transmission", "description": "Transmission.", "findings": [ { "id": "transmission-finding", "name": "Transmission", "description": "Transmission.", "questions": [ { "text": "How are these diseases transmitted from animals and between people, in general terms?", "kind": "definition" }, { "text": "Which entry fits the specific disease?", "kind": "action" } ] } ] } ] }, { "id": "respond", "name": "Respond", "description": "Prevention and response.", "rationale": "Public health.", "layers": [ { "id": "prevention", "name": "Prevention", "description": "Prevention.", "findings": [ { "id": "prevention-finding", "name": "Prevention", "description": "Prevention.", "questions": [ { "text": "What vaccines, vector control and infection control measures exist?", "kind": "provenance" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] }, { "id": "outbreaks", "name": "Outbreaks", "description": "Outbreak response.", "findings": [ { "id": "outbreaks-finding", "name": "Outbreaks", "description": "Outbreaks.", "questions": [ { "text": "How are outbreaks detected and managed, and what lessons come from past outbreaks?", "kind": "provenance" }, { "text": "Which entry fits the specific outbreak?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Research and history.", "rationale": "Context.", "layers": [ { "id": "research", "name": "Research", "description": "Research.", "findings": [ { "id": "research-finding", "name": "Research", "description": "Research.", "questions": [ { "text": "What research exists on treatments and vaccines, with findings attributed?", "kind": "provenance" }, { "text": "Is the presentation free of laboratory or operational detail?", "kind": "boundary" } ] } ] }, { "id": "history", "name": "History", "description": "History.", "findings": [ { "id": "history-finding", "name": "History", "description": "History.", "questions": [ { "text": "How were these diseases discovered, from yellow fever to Ebola?", "kind": "provenance" }, { "text": "Which entry fits the history of virology?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "Should each disease be a separate primary entry?", "How should outbreak sources be linked?", "The registry entry has merged aliases naming distinct diseases; should they be split off?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "disease or condition", "method": "Written from the archetype playbook - what this kind of thing needs beyond identity and provenance - and from the structure that recurred across 6,333 models already researched by two engines. Applied to this entry by rule. No source was read for this thing and no claim here is researched. This entry carries no facets of its own, so they were inferred from its domain - a guess about a whole domain applied to one thing.", "facetsInferred": true, "nextPass": "A researcher replaces this draft with a sourced specification. Treat every sentence below as a proposal to argue with.", "purpose": "Give an agent a durable, checkable way to recognise a viral hemorrhagic fever, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain viral haemorrhagic fevers and their causes in general terms from WHO and CDC sources, describe transmission, prevention and outbreak response, and route suspected cases to health authorities.", "characteristics": { "substance": "abstract", "origin": "conceptual", "agency": "inert" }, "whatYouCanDoWithIt": [ "observed and measured" ], "distinguishingFeatures": [ "Names folded into this entry, which a task may need to split apart again: hantavirus hemorrhagic fever, Crimean-Congo hemorrhagic fever, Kyasanur forest disease, Marburg virus disease, Whitewater Arroyo hemorrhagic fever, arenavirus hemorrhagic fever, cocoliztli, Omsk hemorrhagic fever, Alkhurma hemorrhagic fever.", "9 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 47 Wikipedia languages, which is a measure of how widely the thing is known, not of how important it is." ], "openQuestionsForResearch": [ "Which of the bundles below does a real task actually need, and which are ceremony?", "What does this thing have that the facets do not capture at all?", "Which neighbouring kind is most often confused with a viral hemorrhagic fever, and on what evidence are they told apart?" ], "whatItIsMadeOf": "an abstraction with no physical instance", "physicalCharacter": [ "Does nothing on its own; everything it does, something else did to it.", "These come from the domain this entry sits in rather than from the entry itself, so treat them as a first guess about the whole domain applied to one thing." ], "whatCanBeDoneWithIt": [ "observe it, measure it, record its state" ], "howItIsRecognised": [ "Recognised by criteria applied to signs and findings, not by appearance. Two conditions can look identical and be distinguished only by test." ], "relatedModels": [ { "relation": "covers", "note": "Finer kinds folded into this entry because telling them apart needs a task that asks for it. Each is a model waiting to be split out when one does.", "targets": [ "hantavirus hemorrhagic fever", "Crimean-Congo hemorrhagic fever", "Kyasanur forest disease", "Marburg virus disease", "Whitewater Arroyo hemorrhagic fever", "arenavirus hemorrhagic fever", "cocoliztli", "Omsk hemorrhagic fever", "Alkhurma hemorrhagic fever" ] } ], "standing": "Described in 47 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 9 finer distinctions are held inside this entry as names rather than as separate models.", "structure": { "bundles": [ { "id": "identity-and-classification", "name": "Identity, naming and classification", "description": "How an agent tells one viral hemorrhagic fever from another, and a viral hemorrhagic fever from things that resemble it.", "rationale": "Recognition comes before every other claim. Without stable identity nothing else in the model can be trusted to be about the same thing twice.", "layers": [ { "id": "naming-and-identifiers", "name": "Names and identifiers", "description": "The names this thing goes by and the identifiers that survive translation and time.", "findings": [ { "id": "preferred-name-and-aliases", "name": "Preferred name, aliases and local names", "description": "Which name to use, which names mean the same thing, and which merely sound similar.", "questions": [ { "id": "preferred-name-and-aliases-q01", "text": "What identifies and describes the name of a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "preferred-name-and-aliases-q02", "text": "Who or what asserted this about the name of a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "preferred-name-and-aliases-q03", "text": "What may an agent decide or do once the name of a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "stable-identifiers", "name": "Stable identifiers and external keys", "description": "Identifiers that keep pointing at this kind of thing across systems and languages.", "questions": [ { "id": "stable-identifiers-q01", "text": "What identifies and describes an identifier for a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stable-identifiers-q02", "text": "Who or what asserted this about an identifier for a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stable-identifiers-q03", "text": "What may an agent decide or do once an identifier for a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "classification-and-granularity", "name": "Classification and granularity", "description": "Where a viral hemorrhagic fever sits among kinds, and how finely a task needs to cut it.", "findings": [ { "id": "kind-and-parents", "name": "Kind, parents and neighbouring kinds", "description": "The classes this thing belongs to and the ones it is next to.", "questions": [ { "id": "kind-and-parents-q01", "text": "What identifies and describes the kind of a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "kind-and-parents-q02", "text": "Who or what asserted this about the kind of a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "kind-and-parents-q03", "text": "What may an agent decide or do once the kind of a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] }, { "id": "distinguishing-features", "name": "Distinguishing features", "description": "What separates a viral hemorrhagic fever from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "distinguishing-features-q02", "text": "Who or what asserted this about what distinguishes a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "distinguishing-features-q03", "text": "What may an agent decide or do once what distinguishes a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "state-and-lifecycle", "name": "State and lifecycle", "description": "The states a viral hemorrhagic fever passes through and the events that move it between them.", "rationale": "Most decisions about a thing depend on what state it is in now, which is a claim with a time on it, not a property.", "layers": [ { "id": "lifecycle-stages", "name": "Lifecycle stages", "description": "From coming into existence to ceasing to be one of these.", "findings": [ { "id": "stages-and-transitions", "name": "Stages and transitions", "description": "The stages worth naming and what moves a viral hemorrhagic fever between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "stages-and-transitions-q02", "text": "Who or what asserted this about the lifecycle of a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "stages-and-transitions-q03", "text": "What may an agent decide or do once the lifecycle of a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "observations-and-status", "name": "Observations and current status", "description": "What is observed about a viral hemorrhagic fever, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a viral hemorrhagic fever is recorded so that it can be superseded rather than overwritten.", "questions": [ { "id": "observation-record-q01", "text": "What identifies and describes an observation of a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "observation-record-q02", "text": "Who or what asserted this about an observation of a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "observation-record-q03", "text": "What may an agent decide or do once an observation of a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "diagnosis-and-criteria", "name": "Diagnosis, criteria and coding", "description": "What makes a case of viral hemorrhagic fever a case, and under which revision.", "rationale": "Criteria change between revisions, so a diagnosis without its coding revision cannot be compared with a later one.", "layers": [ { "id": "criteria", "name": "Diagnostic criteria", "description": "The criteria in force and who issues them.", "findings": [ { "id": "criteria-record", "name": "Criteria, issuer and revision", "description": "What must be true for a diagnosis, according to whom.", "questions": [ { "id": "criteria-record-q01", "text": "What criteria define viral hemorrhagic fever, issued by which body, in which revision?", "kind": "definition" }, { "id": "criteria-record-q02", "text": "What changed between revisions that would reclassify existing cases?", "kind": "boundary" } ] } ] }, { "id": "coding", "name": "Coding and terminology", "description": "The codes used to record it and their mapping.", "findings": [ { "id": "coding-record", "name": "Codes and mappings", "description": "Which classification codes apply and how they map.", "questions": [ { "id": "coding-record-q01", "text": "Which classification and terminology codes cover viral hemorrhagic fever, and how do they map to each other?", "kind": "definition" }, { "id": "coding-record-q02", "text": "What is lost when a case is mapped from one scheme to another?", "kind": "boundary" } ] } ] } ] }, { "id": "course-and-population", "name": "Course, population and care", "description": "How viral hemorrhagic fever develops, whom it affects, and what is done about it.", "rationale": "The condition, the diagnosis and the episode of care are three different things, and an agent must not merge them.", "layers": [ { "id": "course", "name": "Course and stages", "description": "Onset, progression, remission and outcome.", "findings": [ { "id": "course-record", "name": "Stages and transitions", "description": "The stages recorded and what moves a case between them.", "questions": [ { "id": "course-record-q01", "text": "What course does viral hemorrhagic fever typically take, and what marks each stage?", "kind": "definition" }, { "id": "course-record-q02", "text": "What separates the condition itself from an episode of care for it?", "kind": "boundary" } ] } ] }, { "id": "population", "name": "Affected populations", "description": "Who is affected, how often, and on what evidence.", "findings": [ { "id": "epidemiology", "name": "Prevalence and its basis", "description": "Rates with their population, period and source.", "questions": [ { "id": "epidemiology-q01", "text": "What prevalence or incidence is reported for viral hemorrhagic fever, in which population and period?", "kind": "measurement" }, { "id": "epidemiology-q02", "text": "What may an agent not conclude about an individual from a population rate?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a viral hemorrhagic fever came from and when it held.", "rationale": "A claim without a source and a time cannot be superseded, only overwritten, and an agent that overwrites loses the ability to explain itself.", "layers": [ { "id": "source-and-authority", "name": "Source and authority", "description": "Who said it, on what evidence, and how strongly.", "findings": [ { "id": "claim-provenance", "name": "Claim provenance and confidence", "description": "The authority behind each claim about a viral hemorrhagic fever and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "claim-provenance-q02", "text": "Who or what asserted this about a claim about a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "claim-provenance-q03", "text": "What may an agent decide or do once a claim about a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] }, { "id": "time-and-versions", "name": "Time, versions and supersession", "description": "When a claim was true, when it was learnt, and what replaced it.", "findings": [ { "id": "validity-and-supersession", "name": "Validity period and supersession", "description": "How an old claim about a viral hemorrhagic fever is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a viral hemorrhagic fever, and in what units or vocabulary?", "kind": "definition", "answer_data": [ "identifiers", "types and classes", "values with units", "explicit unknowns" ] }, { "id": "validity-and-supersession-q02", "text": "Who or what asserted this about the validity of a claim about a viral hemorrhagic fever, by which method, and when was it true?", "kind": "provenance", "answer_data": [ "authority", "method", "evidence", "event time", "knowledge time" ] }, { "id": "validity-and-supersession-q03", "text": "What may an agent decide or do once the validity of a claim about a viral hemorrhagic fever is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] } ] }, "statistics": { "bundles": 5, "layers": 10, "findings": 12, "questions": 32 } } } }