Description
Inclusion Criteria:
- * Patients aged 18 or above
- * Have a mobile phone number or SMS-capable phone number in UCLA Health's database
- * Having completed a COVID-19 vaccine primary series based on CAIR data
- * Last COVID-19 vaccine shot (including booster shot) occurred at least two months before the date when patient list are pulled in preparation for the trial, based on CAIR data. The last two criteria meant to identify patients who are eligible for the updated booster.
Exclusion Criteria:
- * Patients who have received the bivalent booster anywhere (based on CAIR data) before the day they receive the text message
- * Patients who have already scheduled appointments at UCLA Health for getting the bivalent booster before the day they receive the text message
Ages Eligible for Study:
18 Years to N/A (ADULT, OLDER_ADULT)
Sexes Eligible for Study: ALL
Accepts Healthy Volunteers:
Yes