Text4Vax: Text Message Reminders for Pediatric COVID-19 and Influenza Vaccines 2024-25 Season

Text4Vax: Understanding the Effectiveness and Implementation of Text Message Reminders for Pediatric COVID-19 and Influenza Vaccines 2024-2025 Season

This multi-site study assesses the impact of text message reminders on the receipt of COVID-19 and influenza text message reminders takes place primarily in practices from the American Academy of Pediatrics (AAP) Pediatric Research in Office Settings (PROS) network.

The study is to be conducted over the 1st season (September 2024-April 2025) as an effectiveness trial and the 2nd (September 2025-April 2026) as a replication study. This protocol covers the first season. Parents of eligible children who are 6 month-17 year-old who are due for both a COVID-19 and influenza vaccine will be sent text messages. Within each practice site, parents of eligible children will be randomized to receive either: 1) combined COVID-19 and influenza vaccine text message reminders, 2) COVID-19 reminders alone, 3) influenza reminders alone, or 4) no reminders (usual care).

Randomization is to be stratified by practice site, age group and prior year's COVID-19/influenza vaccine history. Messages will be sent centrally and managed by the research team.

Inclusion Criteria:

• Child that:

  • is 6 months-17 year-old children
  • due for both a COVID-19 and influenza vaccine

• Receives care at study site

• Language listed in electronic health record is English or Spanish

• Has not opted out of text messages from practice

Exclusion Criteria:

• Has opted out of text messages from practice
• Language listed in electronic health record is not English or Spanish