Record Natural Immunity
Record a natural immunity for an individual — a disease they've contracted and are now immune to. Assessed only by a general practitioner, paediatrician, public health physician, infectious diseases physician, or clinical immunologist.
Requires an `individualIdentifier` from a prior [Identify Individual](/api-reference/air/individual-details/identify-individual) call. The information provider must be authorised for `NATIMM` (check via [Authorisation](/api-reference/air/authorisation/authorisation)) — unauthorised providers return `AIR-E-1063`.
For shared response patterns and the full status-code list, see [AIR Integration](/air).
#### Eligible diseases
Per the AIR spec, natural immunity can be recorded for: `HEP` (Hepatitis), `MEA` (Measles), `MUM` (Mumps), `QAX` (Q fever), `RUB` (Rubella), `VAR` (Varicella).
#### Date format
Date fields use **DDMMYYYY** with no separators.
#### Status Codes
| Code | Meaning |
|---|---|
| `AIR-I-1100` | Immunity recorded. |
| `AIR-E-1005` | Validation errors. Common: `AIR-E-1063` provider not authorised, `AIR-E-1049` immunity for this disease already recorded. |