“Notify Health Vaccination Reminders - Our first year, pilot results and the path ahead” by Samuel Harvey, DanielHa
EA Forum Podcast (All audio) - A podcast by EA Forum Team

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TL;DR This post introduces Notify Health, an AIM-incubated charity that reduces vaccine-preventable child deaths in Nigeria via SMS and voice vaccination reminders. Nigeria has the highest number of children missing vaccines globally by count. Over 50% of missed vaccines are caused in part by caregivers forgetting or misunderstanding the schedule. SMS and call vaccination reminders are a scalable solution that has strong evidence of effectiveness. A meta-analysis in LMICs shows sizable effects, and there are programs that prove this intervention can work at scale by serving millions of children already. Implementation remains neglected in many contexts, including Nigeria. Founded one year ago, Notify Health piloted reminders with ~2,200 caregiver-child pairs from 44 clinics in Kogi state, Nigeria. The program works by digitising widespread health facility paper records to enrol caregivers. During the pilot, we sent 42,000+ reminders and saw timely vaccination increase by 12–24 percentage points in our analysis [...] ---Outline:(00:21) TL;DR(02:37) The problem - Millions miss vaccination due to simple knowledge barriers(05:35) The solution - Make it easy with proven, low-cost, and scalable reminders(05:41) Intervention: Vaccination Reminders(07:48) Our implementation(09:39) Progress - Notify Health piloted reminders in Nigeria with ~2,200 caregivers(11:00) Operational metrics - Feasibility & Reach(13:06) Caregiver Feedback(15:10) Changes in immunization rates(19:05) Discussion and limitations(19:46) Timeliness vs coverage(21:02) Limitations of our analysis(24:28) Cost-Effectiveness - Not Yet 10x, but a clear path there(29:30) Up Next - Iterating on the model for greater impact and cost-effectiveness(29:53) Pilot in another Nigerian State(30:23) Find a way to enrol a wider range of children from the general population(31:04) Iterate on the program design to reduce cost and improve impact(32:12) Continue to build our monitoring and evaluation muscle(32:55) Looking further ahead(34:01) How you can get involved(35:15) Acknowledgements - Who we're grateful forThe original text contained 7 footnotes which were omitted from this narration. --- First published: June 4th, 2025 Source: https://forum.effectivealtruism.org/posts/22323TMBfYzkosrhy/notify-health-vaccination-reminders-our-first-year-pilot --- Narrated by TYPE III AUDIO. ---Images from the article:Apple Podcasts and Spotify do not show images in the episode description. Try Pocket Casts, or another podcast app.