🦠 Partner Notification & Expedited Partner Therapy Simulator

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.