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  1. Case Definitions/

Measles

Authors: China CDC

Location: China

Purpose #

The definition #

未进行流行病学调查或完成调查前失访或死亡的病例,实验室检测结果为阴性或无实验室诊断结果的临床报告病例,且与实验室确诊病例没有流行病联系.

Machine-readable definition #

The definition is available in JSON format following the Open Syndrome v1.0 specification:

{
   "$schema": "https://w3id.org/opensyndrome/v1/schema.json",
   "@context": "https://opensyndrome.org/schema/v1/context.jsonld",
   "category": "suspected",
   "definition_type": "case_definition",
   "description": "",
   "human_readable_definition": "未进行流行病学调查或完成调查前失访或死亡的病例,实验室检测结果为阴性或无实验室诊断结果的临床报告病例,且与实验室确诊病例没有流行病联系.",
   "inclusion_criteria": [
     {
       "logical_operator": "OR",
       "name": "Symptoms or professional diagnosis",
       "type": "criterion",
       "values": [
         {
           "logical_operator": "AND",
           "type": "criterion",
           "values": [
             {
               "name": "Fever",
               "type": "symptom"
             },
             {
               "name": "Rash (maculopapular rash)",
               "type": "symptom"
             },
             {
               "name": "Cough",
               "type": "symptom"
             },
             {
               "logical_operator": "AT_LEAST",
               "logical_operator_arguments": [
                 1
               ],
               "type": "criterion",
               "values": [
                 {
                   "name": "Catarrhal fever",
                   "type": "symptom"
                 },
                 {
                   "name": "Conjunctivitis",
                   "type": "symptom"
                 }
               ]
             }
           ]
         },
         {
           "name": "Measles diagnosed by any trained health worker",
           "type": "professional_judgment"
         }
       ]
     }
   ],
   "keywords": [
     "Measles",
     "Asia"
   ],
   "language": "English",
   "location": "China",
   "open_syndrome_version": "1.0.0",
   "organization": "China CDC",
   "published_at": "2025-02-27T17:48:51Z",
   "published_by": [
     "Open Syndrome Initiative"
   ],
   "published_in": "https://opensyndrome.org",
   "references": [
     {
       "url": "https://www.chinacdc.cn/jkyj/crb2/yl/mz/jswj_mz/202409/t20240909_299153.html"
     }
   ],
   "scope": "broad",
   "status": "draft",
   "target_public_health_threats": [
     "Measles"
   ],
   "title": "Measles",
   "version": "1.0.0"
 }

Using the Definition #

Healthcare organizations can implement this definition through:

  • Direct integration with surveillance systems
  • API endpoints for real-time validation
  • Manual case verification processes

Next Steps #

We encourage:

  • Clinical feedback on the definition criteria
  • Technical feedback on the implementation format
  • Suggestions for additional symptoms or signs
  • Reports of implementation experiences

Get Involved #

We welcome contributions and feedback from the community.