{ "model": { "rank": 6150, "code": "thing-q193566", "model_id": "vr.tr.incubation-period", "name": "incubation period", "purpose": "Let an agent explain incubation periods, relay typical ranges and uses in public health from epidemiology sources with ranges attributed, describe intrinsic and extrinsic periods and flag the latency alias, route post-exposure care, and distinguish incubation period from latent period in epidemiology, infectious period, window period in testing and viral latency.", "family": "Thing Registry", "category": "Cross-cutting context", "status": "research-draft", "kind": "thing", "plane": "XCT", "domain": "XCT.TME", "industry": "", "version": "", "url": "/models/thing/q193566/", "tier": 2, "score": 62, "payload": { "layer": "wikidata", "aliases": [ "intrinsic incubation period", "extrinsic incubation period", "virus latency" ], "aliasCount": 3, "merged": 3, "knownIn": 62, "facets": null, "markers": [], "lexicalClass": "", "senseRank": null, "alsoRegisteredAs": "vr.tr.incubation-period", "source": { "dataset": "wikidata", "item": "Q193566", "url": "https://www.wikidata.org/wiki/Q193566", "license": "CC0 1.0" } }, "research": { "vercy": "1.0-draft", "publication": { "status": "research-draft", "adjudicationStatus": "unreviewed", "publishableCanonical": false, "generatedAt": "2026-09-14T01:27:58Z", "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": 4, "engine": "claude" }, "metaModel": { "id": "THING-Q193566", "registryId": "vr.tr.incubation-period", "name": "incubation period", "version": "0.2.0-wave.4", "entryKind": "thing", "family": "Thing Registry", "domain": [ "XCT.TME" ], "status": "research-draft" }, "canonicalUrl": "https://ver.cy/models/thing/q193566/", "model": { "registry_id": "vr.tr.incubation-period", "name": "incubation period", "purpose": "Let an agent explain incubation periods, relay typical ranges and uses in public health from epidemiology sources with ranges attributed, describe intrinsic and extrinsic periods and flag the latency alias, route post-exposure care, and distinguish incubation period from latent period in epidemiology, infectious period, window period in testing and viral latency.", "definition": "The time between exposure to an infectious agent, toxin or other cause and the appearance of the first symptoms, varying by disease from hours, as with some food poisoning, to days for influenza, weeks for chickenpox and months or years for diseases such as rabies in some cases or HIV-related illness; registry aliases name the intrinsic incubation period in the human or animal host and the extrinsic incubation period of a pathogen developing in a vector such as a mosquito, while virus latency, a dormant state of viruses such as herpesviruses, is a different concept and appears loosely filed. Incubation periods inform quarantine durations and outbreak investigation, and anyone exposed to rabies risk or other serious infections should seek medical advice promptly without waiting for symptoms.", "what_it_is_for": "Timing disease onset after exposure.", "affordances": [ "explain the concept", "relay typical ranges with attribution", "describe intrinsic and extrinsic periods", "route post-exposure care" ], "distinguishing_features": [ "Exposure to symptom onset", "Disease-specific ranges", "Basis for quarantine", "Distribution rather than fixed value" ], "appearance": "Not a physical object; a time interval shown in epidemic curves and case definitions.", "visual_identification": [ "Time from exposure to symptoms", "Intrinsic incubation period, extrinsic incubation period, virus latency", "The latent period is time to infectiousness; the infectious period is when spread occurs; the window period is before tests detect infection; viral latency is dormancy" ], "physical_properties": [ { "quantity": "influenza incubation", "typical_range": "about 1-4", "unit": "days", "note": "typical, attributed" }, { "quantity": "chickenpox incubation", "typical_range": "about 10-21", "unit": "days", "note": "typical, attributed" }, { "quantity": "Sartwell incubation distribution", "typical_range": "1950", "unit": "year", "note": "log-normal model" } ], "families_and_kinds": [ "intrinsic incubation period", "extrinsic incubation period", "short incubation diseases", "long incubation diseases" ], "related_models": [ { "relation": "is a kind of", "target": "duration", "why": "in registry terms" }, { "relation": "informs", "target": "quarantine", "why": "" }, { "relation": "is contrasted with", "target": "latent period", "why": "" }, { "relation": "is contrasted with", "target": "viral latency", "why": "loosely filed alias" } ], "identifiers": [], "standards_and_regulation": [ "WHO and national case definitions", "International Health Regulations 2005", "Post-exposure prophylaxis guidelines" ], "failure_modes_and_hazards": [ "Waiting for symptoms after rabies exposure", "Using fixed values instead of ranges", "Confusing incubation and infectious periods" ], "in_scope": [], "out_of_scope": [], "characteristics": [] }, "sources": [], "structure": { "bundles": [ { "id": "understand", "name": "Understand", "description": "What an incubation period is.", "rationale": "Science.", "layers": [ { "id": "definition", "name": "Definition", "description": "Definition.", "findings": [ { "id": "definition-finding", "name": "Definition", "description": "Definition.", "questions": [ { "text": "Has someone been bitten or scratched by a possibly rabid animal or exposed to a serious infection, in which case seek medical advice now rather than waiting for symptoms?", "kind": "boundary" }, { "text": "What is an incubation period, and how does it differ from latent, infectious and window periods and viral latency?", "kind": "definition" } ] } ] }, { "id": "types", "name": "Types", "description": "Named types.", "findings": [ { "id": "types-finding", "name": "Types", "description": "Types.", "questions": [ { "text": "What are intrinsic and extrinsic incubation periods, and why is virus latency different?", "kind": "definition" }, { "text": "Which entry fits the specific concept?", "kind": "action" } ] } ] } ] }, { "id": "epidemiology", "name": "Epidemiology", "description": "Epidemiology.", "rationale": "Science.", "layers": [ { "id": "ranges", "name": "Ranges", "description": "Typical ranges.", "findings": [ { "id": "ranges-finding", "name": "Ranges", "description": "Ranges.", "questions": [ { "text": "What incubation ranges do public health agencies give for common diseases?", "kind": "measurement" }, { "text": "Which references are standard?", "kind": "provenance" } ] } ] }, { "id": "distributions", "name": "Distributions", "description": "Statistical distributions.", "findings": [ { "id": "distributions-finding", "name": "Distributions", "description": "Distributions.", "questions": [ { "text": "Why are incubation periods modelled as distributions?", "kind": "measurement" }, { "text": "Which sources are cited?", "kind": "provenance" } ] } ] } ] }, { "id": "publichealth", "name": "Public health", "description": "Public health uses.", "rationale": "Regulation.", "layers": [ { "id": "quarantine", "name": "Quarantine", "description": "Quarantine durations.", "findings": [ { "id": "quarantine-finding", "name": "Quarantine", "description": "Quarantine.", "questions": [ { "text": "How are quarantine periods set from incubation data?", "kind": "provenance" }, { "text": "Is the information current?", "kind": "boundary" } ] } ] }, { "id": "outbreaks", "name": "Outbreaks", "description": "Outbreak investigation.", "findings": [ { "id": "outbreaks-finding", "name": "Outbreaks", "description": "Outbreaks.", "questions": [ { "text": "How do investigators use incubation periods to find sources?", "kind": "provenance" }, { "text": "Which entry fits outbreak investigation?", "kind": "action" } ] } ] } ] }, { "id": "context", "name": "Context", "description": "Vectors.", "rationale": "Attribution.", "layers": [ { "id": "vectors", "name": "Vectors", "description": "Extrinsic incubation.", "findings": [ { "id": "vectors-finding", "name": "Vectors", "description": "Vectors.", "questions": [ { "text": "How does temperature affect extrinsic incubation in mosquitoes, as studies report?", "kind": "provenance" }, { "text": "Is the presentation neutral and attributed?", "kind": "boundary" } ] } ] }, { "id": "latency", "name": "Latency", "description": "Viral latency.", "findings": [ { "id": "latency-finding", "name": "Latency", "description": "Latency.", "questions": [ { "text": "How does herpesvirus latency differ from incubation?", "kind": "provenance" }, { "text": "Which entry fits virus latency?", "kind": "action" } ] } ] } ] } ] }, "openQuestions": [ "The registry alias virus latency should be moved to virology entries", "Should extrinsic incubation be a separate entry?", "How should disease-specific ranges be linked and kept current?" ], "statistics": { "bundles": 4, "layers": 8, "findings": 8, "questions": 16 } }, "draft": { "generator": "vr.draft.v3", "status": "draft-generated", "researched": false, "archetype": "event or period", "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 incubation period, record what state it is in, and decide what may be done with it.", "whatItIs": "Let an agent explain incubation periods, relay typical ranges and uses in public health from epidemiology sources with ranges attributed, describe intrinsic and extrinsic periods and flag the latency alias, route post-exposure care, and distinguish incubation period from latent period in epidemiology, infectious period, window period in testing and viral latency.", "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: intrinsic incubation period, extrinsic incubation period, virus latency.", "3 finer distinctions are held as aliases rather than separate entries, because telling them apart needs a task that asks for it.", "Described in 62 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 incubation period, 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": [ "Not a thing to see. Recognised by when it happened and who was involved, on the account of somebody." ], "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": [ "intrinsic incubation period", "extrinsic incubation period", "virus latency" ] } ], "standing": "Described in 62 Wikipedia languages, which measures how widely it is written about rather than how important or how common it is. 3 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 incubation period from another, and a incubation period 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 incubation period, 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 incubation period, 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 incubation period 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 incubation period, 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 incubation period, 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 incubation period 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 incubation period 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 incubation period, 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 incubation period, 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 incubation period 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 incubation period from the things most often confused with it.", "questions": [ { "id": "distinguishing-features-q01", "text": "What identifies and describes what distinguishes a incubation period, 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 incubation period, 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 incubation period 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 incubation period 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 incubation period between them.", "questions": [ { "id": "stages-and-transitions-q01", "text": "What identifies and describes the lifecycle of a incubation period, 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 incubation period, 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 incubation period 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 incubation period, how often and by whom.", "findings": [ { "id": "observation-record", "name": "Observation record", "description": "How an observation of a incubation period 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 incubation period, 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 incubation period, 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 incubation period is known, and what must it refuse?", "kind": "action", "answer_data": [ "permitted actions", "preconditions", "refusals", "escalation" ] } ] } ] } ] }, { "id": "extent-and-dating", "name": "Temporal extent and dating", "description": "When incubation period began and ended, and who says so.", "rationale": "Dates for events are conventions held by historiographies that disagree, and a single confident date hides the disagreement.", "layers": [ { "id": "dating", "name": "Dating and calendar", "description": "Start, end, granularity and the calendar used.", "findings": [ { "id": "date-record", "name": "Dates, granularity and authority", "description": "What is dated, how precisely, and on whose account.", "questions": [ { "id": "date-record-q01", "text": "What start and end are conventionally given for incubation period, at what granularity, in which calendar?", "kind": "definition" }, { "id": "date-record-q02", "text": "Which accounts date it differently, and on what grounds?", "kind": "provenance" } ] } ] }, { "id": "membership-of-the-event", "name": "What counts as part of it", "description": "Sub-events included or excluded, and by whom.", "findings": [ { "id": "inclusion", "name": "Inclusion and exclusion", "description": "The episodes treated as inside the event and those left out.", "questions": [ { "id": "inclusion-q01", "text": "Which episodes are counted as part of incubation period, and which are treated as separate?", "kind": "boundary" }, { "id": "inclusion-q02", "text": "Whose framing is being followed in that inclusion, and who frames it otherwise?", "kind": "provenance" } ] } ] } ] }, { "id": "participants-and-consequence", "name": "Participants, causes and consequences", "description": "Who took part in incubation period and what is claimed to follow from it.", "rationale": "Causation around events is asserted rather than observed, so each claim needs the party asserting it.", "layers": [ { "id": "participants", "name": "Participants and roles", "description": "Parties involved and what each did.", "findings": [ { "id": "participant-record", "name": "Parties and their roles", "description": "Who is recorded as involved and in what capacity.", "questions": [ { "id": "participant-record-q01", "text": "Which parties took part in incubation period, in what roles, and on whose account?", "kind": "provenance" }, { "id": "participant-record-q02", "text": "Where do accounts disagree about who was involved?", "kind": "boundary" } ] } ] }, { "id": "consequences", "name": "Causes and consequences", "description": "What is claimed to have caused it and followed from it.", "findings": [ { "id": "causal-claims", "name": "Causal claims and who makes them", "description": "Antecedents and outcomes as attributed claims.", "questions": [ { "id": "causal-claims-q01", "text": "What causes and consequences are attributed to incubation period, and by whom?", "kind": "provenance" }, { "id": "causal-claims-q02", "text": "What would an agent need before treating such a claim as settled rather than contested?", "kind": "action" } ] } ] } ] }, { "id": "provenance-and-evidence", "name": "Provenance, evidence and time", "description": "Where every claim about a incubation period 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 incubation period and how confident it is.", "questions": [ { "id": "claim-provenance-q01", "text": "What identifies and describes a claim about a incubation period, 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 incubation period, 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 incubation period 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 incubation period is retired without being erased.", "questions": [ { "id": "validity-and-supersession-q01", "text": "What identifies and describes the validity of a claim about a incubation period, 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 incubation period, 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 incubation period 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 } } } }