SARS-CoV-2 infection risk among vaccinated and unvaccinated household members during the Alpha variant surge - Denver, Colorado, and San Diego, California, January-April 2021.

McCormick DW, Konkle SL, Magleby R, Chakrabarti AK, Cherney B, Lindell K, Namageyo-Funa A, Visser S, Soto RA, Donnelly MAP, Stringer G, Austin B, Beatty ME, Stous S, Albanese BA, Chu VT, Chuey M, Dietrich EA, Drobeniuc J, Folster JM, Killerby ME, Lehman JA, McDonald EC, Ruffin J, Schwartz NG, Sheldon SW, Sleweon S, Thornburg NJ, Hughes LJ, Petway M, Tong S, Whaley MJ, Kirking HL, Tate JE, Hsu CH, Matanock A, COVID-19 Household Transmission Team