E. Smith

COVID-19 Incidence and Death Rates Among Unvaccinated and Fully Vaccinated Adults with and Without Booster Doses During Periods of Delta and Omicron Variant Emergence — 25 U.S. Jurisdictions, April 4–December 25, 2021

Melissa G. Pike, C. Drenzek, A. Cronquist, 2022, MMWR. Morbidity and mortality weekly report.

Perceptions and predictors of COVID-19 vaccine hesitancy among health care providers across five countries in sub-Saharan Africa

Kwaku Poku Asante, A. Soura, J. Killewo, 2022, medRxiv.

Covid-19 Rates by Time since Vaccination during Delta Variant Predominance.

C. Drenzek, G. Haney, D. Sosin, 2021, NEJM evidence.