T-Stella/MediGuardCM

Blockchain-enabled pharmaceutical verification system for Cameroon - Final Year Project # MediGuardCM ## Blockchain-Enabled Pharmaceutical Verification System for Cameroon ### 📋 Overview MediGuardCM is a comprehensive blockchain-based solution designed to combat substandard and falsified medicines in Cameroon. The system addresses the critical "Paper Gap" in Cameroon's National Pharmaceutical Traceability System (NPTS) by providing: - ✅ **GS1-compliant drug verification** via mobile app - 📱 **USSD/SMS module** for 58.1% offline population - 💾 **Offline Verification Vault** for rural areas - 🔗 **DHIS2 interoperability** for real-time surveillance - 📊 **Adverse Drug Reaction (ADR) reporting** ### 🎯 Problem Statement - **369.8 million CFA** worth of counterfeit drugs seized (Jan-June 2025) - **8.69 billion CFA** cumulative seizures since 2020 - **14 data units per district** still use manual paper forms - **2-year reporting delays** → counterfeit batches kill before detection - **45% of health platforms** cannot interoperate with DHIS2 - **58.1% of Cameroonians** have no internet access ### 🏗️ Architecture ┌─────────────────────────────────────────────────────────────┐ │ MEDIGUARDCM SYSTEM │ ├─────────────────────────────────────────────────────────────┤ │ ┌─────────────┐ ┌──────────────┐ ┌──────────────────┐ │ │ │ Blockchain │ │ Verification │ │ USSD/SMS Module │ │ │ │ Backend │◄─┤ Client │──┤ (*123#) │ │ │ │ (Immutable) │ │ (Mobile) │ │ (Offline) │ │ │ └─────────────┘ └──────────────┘ └──────────────────┘ │ │ │ │ │ │ │ └───────────────┼────────────────────┘ │ │ ▼ │ │ ┌─────────────────────┐ │ │ │ Offline Vault │ │ │ │ (Cached Batches) │ │ │ └─────────────────────┘ │ │ │ │ │ ▼ │ │ ┌─────────────────────┐ │ │ │ DHIS2 Integration │ │ │ │ (HL7/FHIR API) │ │ │ └─────────────────────┘ │ └─────────────────────────────────────────────────────────────┘ ### 🛠️ Technical Stack | Component | Technology | |-----------|------------| | Backend | Node.js + Express (or Python Flask) | | Frontend | React.js (Web) / React Native (Mobile) | | Blockchain | Permissioned …