immunity
Enable an AI agent to recognise a biological host's immunity to a specified challenge, assess the evidence and limits of protection, and identify justified next actions.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
Researched by: Codex
Purpose and description
Enable an AI agent to recognise a biological host's immunity to a specified challenge, assess the evidence and limits of protection, and identify justified next actions.
It can be Formulate a bounded immunity claim for a host, challenge, compartment and protective endpoint.; Attach exposure history, immune measurements and outcome evidence to the claim.; Compare assessments only after checking endpoint, assay, challenge and temporal compatibility.; Flag unsupported extrapolation from immune markers to protection or from one challenge to another.; Identify missing evidence and conditions that warrant reassessment.; Record how an immunity claim supports or limits a proposed action, referring clinical decisions to applicable guidance and qualified review..
Distinguishing features
An immunity claim must identify a host and challenge; a description of immune cells or organs alone describes the immune system.
The claim must distinguish protection from a detectable immune response; an assay result alone does not specify a protected outcome.
Protection must be tied to an endpoint such as preventing infection or limiting disease severity; these endpoints are not interchangeable.
Absence of illness without evidence of exposure or protective capacity does not establish immunity.
Biological immunity concerns host defence; exemption from a rule, jurisdiction or obligation belongs to a different sense of the term.
Scope
+ The host, anatomical compartment and challenge to which an immunity claim applies
+ Innate and adaptive contributions to the claimed protection
+ Acquisition through exposure, immunisation or passive transfer
+ Evidence of protection and the limits of laboratory or observational indicators
+ Changes in protection over time and under altered host or challenge conditions
+ Constraints on decisions that rely on an immunity claim
- Legal, diplomatic or institutional immunity
- The full anatomy and physiology of the immune system
- Pathogen identity, evolution and transmission beyond their relevance to the protection claim
- Diagnosis and treatment of infections, allergies, autoimmune disease or immunodeficiency
- Vaccine and medicinal-product manufacture, prescribing and administration
- Population-level herd protection and epidemic dynamics
Characteristics
- Host and protected compartment
- Host reference and relevant tissue, organ, mucosal surface or systemic compartment Locates the capacity and prevents evidence from one compartment being assumed to establish protection everywhere.
- Challenge specificity
- Challenge reference, relevant variant or antigen, and known limits of cross-protection Defines what the immunity claim concerns and where extrapolation needs evidence.
- Protective endpoint
- Acquisition prevention; replication or burden control; disease prevention; severity reduction; other specified endpoint Makes the meaning of protection explicit.
- Mechanistic contribution
- Innate; adaptive humoral; adaptive cellular; mixed; unresolved Separates proposed mechanisms from demonstrated protective outcomes.
- Acquisition route
- Constitutive defence; prior exposure; immunisation; passive transfer; mixed; unknown Supports interpretation of onset, persistence and possible immune memory.
- Protective evidence status
- Supported for a specified endpoint; partially supported; conflicting; unsupported; unassessed Prevents an unqualified immune or nonimmune label from replacing the evidence.
- Immune indicator result
- Assay-specific value, unit, specimen, method, collection time and interpretation reference Preserves what was actually measured without treating different assays as interchangeable.
- Protection estimate
- Endpoint-specific probability or relative effect, with exposure context, time horizon, uncertainty and estimation method; unknown when unavailable Expresses graded protection only where the evidence supports quantification.
- Temporal applicability
- Assessment date, observed follow-up, supported applicability interval and reassessment triggers Distinguishes past evidence from a justified claim about present protection.
Also called
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.immunity
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 5 bundles · 10 layers · 10 findings · 20 questions.
Protection claim Defines whose immunity is being described, against what and with which meaning of protection.
Immunity cannot be assessed as an unrestricted property detached from a host, challenge and endpoint.
Host and challenge
Establishes the biological bearer and target of the claim.
Bounded immunity target
Record the host, relevant compartment and challenge at the specificity justified by evidence.
- Which host and anatomical compartment carry the claimed immunity? definition
- Which challenge, variant or antigen is covered, and which related challenges remain outside the claim? boundary
Protected outcomes
Separates different meanings and degrees of protection.
Endpoint-specific protection
Record whether the claim concerns prevention, control or reduced harm, with any supported degree of protection.
- Does protection mean preventing infection, controlling burden, preventing disease or reducing severity? definition
- Under what exposure conditions and over what observation period was this outcome assessed? measurement
Defence and acquisition Records the contributions and origins proposed to account for protection.
Similar protective outcomes may arise through different mechanisms and acquisition routes with different implications.
Immune contributions
Identifies relevant innate, humoral and cellular contributions without requiring a complete immune-system model.
Supported defence mechanisms
Separate observed immune activity from mechanisms inferred to contribute to protection.
- Which innate or adaptive contributions are observed, inferred or unresolved for this protection claim? definition
- What evidence links each recorded contribution to the specified protective endpoint? provenance
Acquisition and memory
Distinguishes sources of protection and evidence of a retained response capacity.
Origin of protective capacity
Record relevant exposure, immunisation or transfer history, keeping acquisition history separate from demonstrated immunity.
- Which documented events or constitutive defences are proposed to explain this immunity? provenance
- What evidence distinguishes immune memory from currently present effectors or passively acquired components? measurement
Evidence and inference Connects immunity claims to measurements, observed outcomes and explicit inference limits.
An immune response, a history of exposure and demonstrated protection provide different kinds of evidence.
Immune measurements
Preserves the context needed to interpret an immune indicator.
Interpretable assay evidence
Record assay identity, specimen, timing, result and the basis for any protective interpretation.
- What was measured, in which specimen, by which method, at what time and in which units? measurement
- What source supports using this indicator or threshold to infer protection for this host context, challenge and endpoint? provenance
Outcome-based support
Assesses whether observed outcomes justify the claimed protection.
Protection inference limits
Record directness of evidence, alternative explanations and uncertainty when applying outcomes to a host.
- What exposure and outcome evidence supports protection, and could limited exposure or another factor explain the outcome? provenance
- Does the evidence concern this host or a reference population, and what limits transfer between them? boundary
Persistence and context Tracks how the applicability of an immunity claim depends on time, host condition and challenge conditions.
A past assessment does not by itself settle protection after relevant conditions change.
Temporal course
Records observed onset, persistence and changes in evidence of protection.
Time-bounded protection
Distinguish measured change, inferred persistence and periods lacking evidence.
- When was protective capacity assessed, and what repeated observations establish its course? measurement
- Beyond which date or follow-up interval would continued protection be an unsupported extrapolation? boundary
Changed protection conditions
Identifies changes that may invalidate an earlier assessment.
Reassessment triggers
Record relevant changes in host condition, treatment, challenge identity or exposure context.
- Which host or challenge conditions differ from those under which protection was established? boundary
- Which documented change should trigger reassessment, and what evidence would resolve it? action
Decision use and limits Makes the consequences and limits of relying on an immunity claim explicit.
An agent needs to distinguish an evidence-supported assessment from authorization to change precautions or clinical care.
Claim-dependent actions
Connects a proposed action to the precise protection it requires.
Action evidence fit
Record the decision, its required protective endpoint and the authority governing its use.
- What action depends on immunity, and does the available evidence address the endpoint and time horizon that action requires? action
- Which applicable guidance or qualified decision-maker determines whether that evidence is sufficient? provenance
Unresolved or discordant status
Handles missing evidence, conflicting indicators and outcomes inconsistent with the claim.
Uncertainty resolution
Preserve disagreement and define an appropriate route to clarify immunity without silently converting uncertainty into a binary status.
- Which measurements, histories or observed outcomes conflict, and which part of the protection claim remains unresolved? boundary
- What additional record, validated assessment or qualified review could resolve the uncertainty relevant to the proposed action? action
What the second pass must settle
- Does vr.tr.immunity intend biological immunity, and how should its placement in PHY.OBJ represent a capacity borne by a host?
- Does an existing Vercy world model already own this concept, requiring a registry link instead of a separate publication?
- Should this entry cover immunity across animals, plants and microorganisms, or should its initial applicability be explicitly narrower?
- Where should the boundary lie between immunity, constitutive physical barriers, disease tolerance and noninfectious immune targets?
- Which authoritative sources establish usable correlates of protection, interpretation limits and reassessment criteria for each supported host-challenge pair?