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  1. Case Definitions/

Open Syndrome Chlamydia

Authors: Institute of Environmental Science and Research

Location: New Zealand

Purpose #

Laboratory detection of Chlamydia trachomatis in a clinical specimen.

The definition #

Machine-readable definition #

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

{
   "category": "confirmed",
   "definition_type": "case_definition",
   "description": "Laboratory detection of Chlamydia trachomatis in a clinical specimen.",
   "human_readable_definition": "",
   "inclusion_criteria": [
     {
       "description": "Anogenital includes urogenital and anorectal infection.",
       "name": "uncomplicated infection of the lower anogenital tract",
       "type": "diagnosis"
     },
     {
       "logical_operator": "OR",
       "name": "PID (pelvic inflammatory disease) or epididymitis",
       "type": "criterion",
       "values": [
         {
           "description": "PID",
           "name": "pelvic inflammatory disease",
           "type": "diagnosis"
         },
         {
           "name": "epididymitis",
           "type": "diagnosis"
         }
       ]
     },
     {
       "description": "eg, eye or pharynx",
       "name": "infection of another site (eg, eye or pharynx)",
       "type": "diagnosis"
     }
   ],
   "keywords": [
     "Chlamydia",
     "Oceania"
   ],
   "language": "English",
   "location": "New Zealand",
   "open_syndrome_version": "1.0.0",
   "organization": "Institute of Environmental Science and Research",
   "published_at": "2025-02-25T12:05:42Z",
   "published_by": [
     "Open Syndrome Initiative"
   ],
   "published_in": "https://opensyndrome.org",
   "references": [
     {
       "url": "https://www.esr.cri.nz/media/0nadzkgc/sticasedefinitions.pdf"
     }
   ],
   "scope": "broad",
   "status": "draft",
   "target_public_health_threats": [
     "Chlamydia"
   ],
   "title": "Open Syndrome Chlamydia",
   "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.