Index Case Identified at Clinic
A positive chlamydia/gonorrhea test starts the partner services process.
- CT/GC: Common STIs addressed (chlamydia & gonorrhea)
- 60 days: Look-back window (typical partner interval)
- Reportable: Reporting (to public health)
- Partner ID: Next step (elicitation interview)
Diagnosis triggers partner services
Placeholder: short note on index case testing and reporting workflow.
Partner Notification Spreads Through the Network
Named partners are notified via patient referral, provider referral, or dual approach.
- 2-4: Partners named (avg) (per index case)
- 3: Notification methods (patient/provider/dual)
- ~60%: Contact success (partners reached)
- Days: Time to notify (from diagnosis)
Contact tracing along the sexual network
Placeholder: short note on how notification pulses travel to partners.
Expedited Partner Therapy Skips the Clinic Visit
Medication or prescription is delivered to partners directly, without an exam.
- Varies: EPT legal status (by US state)
- Reduced: Treatment delay (vs. referral-only)
- 2: Delivery modes (patient-delivered / pharmacy)
- 0-100%: Coverage modeled (slider-controlled)
EPT packets move without a clinic stop
Placeholder: short note on medication packets reaching partner nodes.
Treated Partners Stop Reinfecting the Index Patient
Each treated partner removes a path back to reinfection for the index case.
- Untreated partner: Reinfection source (main driver)
- ↓ risk: EPT effect (to index patient)
- Supports EPT: CDC recommendation (for CT/GC)
- 3 months: Repeat testing (recommended)
Closing reinfection loops
Placeholder: short note on the reinfection-rate curve dropping.
Network Effects Reduce Community Prevalence
Higher EPT coverage compounds across many index cases to lower prevalence.
- Prevalence ↓: Modeled outcome (population-level)
- EPT coverage %: Key driver (slider-controlled)
- Network-wide: Scale (many linked cases)
- Lower incidence: Public health goal (STI control programs)
From one chain to population prevalence
Placeholder: short note on aggregate population-level impact.