1. National Center for Immunization and Respiratory Diseases (2023, June 07). Background Rationale and Evidence for Public Health Recommendations for Fully Vaccinated People, Available online: https://stacks.cdc.gov/view/cdc/104739.
2. Centers for Disease Control and Prevention (2023, June 07). COVID Data Tracker, Available online: https://covid.cdc.gov/covid-data-tracker/#vaccination-demographics-trends.
3. Ndugga, N., Hill, L., Artiga, S., Parker, N., and Latest Data on COVID-19 Vaccinations by Race/Ethnicity (2023, June 07). Kais Family Found 2021. Available online: https://covid-19archive.org/files/original/f90f767bdd1cd10911587853d70a6320f29bf9b7.pdf.
4. The Times They Are a Changin’: Marital Status and Health Differentials from 1972 to 2003;Liu;J. Health Soc. Behav.,2008
5. Social Relationships and Health Behavior Across Life Course;Umberson;Annu. Rev. Sociol.,2010