{
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  "recordId": "case:polio-eradication",
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  "timeBasis": "undated",
  "recordedAt": "2026-10-27T08:31:31.000Z",
  "actorIds": [],
  "refs": [],
  "observationIds": [],
  "reason": "Initial capture of current source wording; no earlier independent review or historical event time is asserted.",
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}