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Sara Rizzo

Sara is a Senior Advisor in the International Programmes team at BIT, based in London. Sara leads projects on immunisation, breastfeeding, nutrition, and mental health across Eastern Europe, Central Asia and Sub-Saharan Africa. As part of BIT’s External Training team, Sara helps manage the training portfolio and delivers sessions on…

Academic publication 18th Oct 2024

A behaviourally informed chatbot increases vaccination rates in Argentina more than a one-way reminder

We designed and tested a WhatsApp chatbot to understand whether two-way interactive messaging incorporating behaviourally informed functionalities could perform better than one-way message reminders. We ran a large-scale preregistered randomized controlled trial with 249,705 participants in Argentina, measuring vaccinations using Ministry of Health records.

Also available in: Español

Press release 18th Oct 2024

Study finds behaviourally informed chatbot triples vaccine uptake

LONDON, 18 October 2024 - A team of international researchers co-led by the Behavioural Insights Team (BIT) and Argentina’s Behavioural Insights and Public Policy Unit, has found that a behaviourally-informed chatbot more than tripled COVID-19 vaccine uptake compared to a control group. 

Academic publication 18th Oct 2024

Un chatbot con información comportamental aumenta las tasas de vacunación en Argentina más que un recordatorio unidireccional

Diseñamos y probamos un chatbot de WhatsApp para entender si la comunicación interactiva bidireccional, que incorpora funcionalidades informadas por el comportamiento, podría funcionar mejor que los recordatorios de mensajes unidireccionales. Llevamos a cabo un ensayo controlado aleatorizado y preinscrito a gran escala con 249.705 participantes en Argentina, midiendo las vacunaciones…

Also available in: English

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