Text message nudge could save thousands from pneumonia
Prevention
Not yet recruiting
This study tests whether a simple WhatsApp message reminding people turning 65 in Chile to get their free pneumococcal vaccine can increase vaccination rates. Over 43,000 adults will be randomly assigned to receive the reminder or not, and researchers will track who gets vaccinat…
Phase: NA • Sponsor: Pablo Tomás Valenzuela García • Aim: Prevention
Last updated Jun 24, 2026 07:03 UTC