Study: NCT05586178

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reminder that facilitates action
Description: Patients will receive a text message reminding them that they can now get the bivalent COVID-19 booster and facilitating action. The message will contain a link to schedule a booster appointment at UCLA Health and a link to vaccine.gov (where people can find local pharmacies that carry the bivalent booster).

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reminder that facilitates action
Description: Patients will receive a text message reminding them that they can now get the bivalent COVID-19 booster and facilitating action. The message will contain a link to schedule a booster appointment at UCLA Health and a link to vaccine.gov (where people can find local pharmacies that carry the bivalent booster).

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reminder that facilitates action
Description: Patients will receive a text message reminding them that they can now get the bivalent COVID-19 booster and facilitating action. The message will contain a link to schedule a booster appointment at UCLA Health and a link to vaccine.gov (where people can find local pharmacies that carry the bivalent booster).

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reminder that facilitates action
Description: Patients will receive a text message reminding them that they can now get the bivalent COVID-19 booster and facilitating action. The message will contain a link to schedule a booster appointment at UCLA Health and a link to vaccine.gov (where people can find local pharmacies that carry the bivalent booster).

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reminder that facilitates action
Description: Patients will receive a text message reminding them that they can now get the bivalent COVID-19 booster and facilitating action. The message will contain a link to schedule a booster appointment at UCLA Health and a link to vaccine.gov (where people can find local pharmacies that carry the bivalent booster).

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Reminder that facilitates action
Description: Patients will receive a text message reminding them that they can now get the bivalent COVID-19 booster and facilitating action. The message will contain a link to schedule a booster appointment at UCLA Health and a link to vaccine.gov (where people can find local pharmacies that carry the bivalent booster).

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Consistency framing
Description: The message will leverage the psychological principle of consistency. It will highlight to patients that based on medical records, they have completed a COVID-19 vaccine primary series, have done a great job protecting their health, and can now get the bivalent booster.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Consistency framing
Description: The message will leverage the psychological principle of consistency. It will highlight to patients that based on medical records, they have completed a COVID-19 vaccine primary series, have done a great job protecting their health, and can now get the bivalent booster.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Information provision about the uniqueness of the bivalent booster
Description: The message will contain information about how the bivalent booster differs from previous doses patients have received and why it is valuable.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Information provision about the uniqueness of the bivalent booster
Description: The message will contain information about how the bivalent booster differs from previous doses patients have received and why it is valuable.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Information provision about bivalent booster eligibility
Description: The message will clarify to patients that regardless of whether they are at high risk, received the original boosters, or previously got COVID-19, they are eligible for the bivalent booster based on their medical records, and the updated booster will be valuable for them.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Information provision about the severity of COVID-19 symptoms
Description: The message will contain information about the often underestimated chances of people developing severe or long-lasting COVID-19 symptoms. The message will also mention that the bivalent booster can reduce such chances.