Open Source Initiative

Open Clinical Decision Support for Immunizations

OpenCdsi is building a simple immunization decision support system for use by off-grid clinics and itinerant health workers. Its premier product is VaxEngine, a vaccine forecasting tool. VaxEngine is used in the mobile app which includes a basic immunization registry and vaccine guidance from the Pink Book.

GitHub Repository

Core Artifacts

Key outputs from the OpenCdsi project

VaxEngine

VaxEngine is a CDSi evaluation and forecast engine. It was developed against the Logic Spec for AICP Recommendations v4.6. It has been tested against the 1064 conformance tests in the Healthy Childhood and Adult v4.46 corpus.

The Pink Book

The antigen chapters of The Epidemiology and Prevention of Vaccine-Preventable Diseases - 14th Edition are packaged as a .NET library.

API

The RPC/REST interface exposes:

  • — Evaluation & forecast
  • — Pink Book antigen chapters
  • — Supporting data

Mobile App

The mobile app forecasts future vaccines for a patient given their immunization history. It runs on Android and Windows 11.

Android 16 APKWin11 x64 MSIWin11 ARM64 MSIOpenCdsi Cert

Latest News

The Status of the OpenCdsi Project September 12, 2026
I’ve accomplished quite a bit in the past couple of weeks, let’s look at where we stand with the OpenCdsi project.

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Contact Us

info@opencdsi.org