1. Immunological memory to SARS-CoV-2 assessed for up to 8 months after infection.;Dan;Science,2021
2. Centers for Disease Control and Prevention. CDC COVID data tracker: COVID-19 vaccinations in the United States. Accessed March 7, 2021. https://covid.cdc.gov/covid-data-tracker/#vaccinations?
3. Centers for Disease Control and Prevention. Public health recommendations for fully vaccinated people. March 8, 2021. https://www.cdc.gov/coronavirus/2019-ncov/vaccines/fully-vaccinated-guidance.html?
4. Centers for Disease Control and Prevention. Science Brief: background rationale and data for public health recommendations for fully vaccinated people. March 8, 2021. https://www.cdc.gov/coronavirus/2019-ncov/more/fully-vaccinated-people.html
5. Centers for Disease Control and Prevention. Interim guidance on retesting and quarantine of adults recovered from laboratory-diagnosed SARS-CoV-2 infection with subsequent re-exposure. Accessed March 7, 2021. https://www.cdc.gov/coronavirus/2019-ncov/hcp/duration-isolation.html#anchor_1613167560916