Given the vaccine and specific antiviral treatment for COVID-19 will take months or years to develop and finalize, preventive behaviors remain the most effective strategy thus far and may be needed until 2022 to control the pandemic. African Americans, who have 3-fold higher infection rate and 6-fold higher death rate compared to the white counterparts, are an especially vulnerable population to COVID-19. Immediately initiating a project that promotes and maximizes adherence to preventative behaviors is vital to addressing the ongoing COVID-19 pandemic. The investigators propose a prospective single arm and longitudinal study to examine the effectiveness of SM-EMA in promoting adherence to COVID-19 preventative behaviors. The intervention will include two daily pop-up messages during Week 1 (one in the morning and one in the afternoon), one daily pop-message in Week 2, and two pop-up messages a week in Weeks 3 and 4. The duration for the intervention will be four weeks. The study outcomes will be collected at baseline (pre-intervention, T1), post-(completion of the intervention, T2, primary endpoint), and monthly follow-up for three months (T3-T5). The total study duration will be four months.
