Viral Dynamics of SARS-CoV-2 Variants in Vaccinated and Unvaccinated Persons. Author(s): Kissler SM, Fauver JR, Mack C, Tai CG, Breban MI, Watkins AE, Samant RM, Anderson DJ, Metti J, Khullar G, Baits R, MacKay M, Salgado D, Baker T, Dudley JT, Mason CE, Ho DD, Grubaugh ND, Grad YH|Journal: N Engl J Med|PMID: 34941024| December 2021