TY - JOUR A1 - Stokes, E.K. A1 - Zambrano, L.D. A1 - Anderson, K.N. A1 - Marder, E.P. A1 - Raz, K.M. A1 - Felix, S.E.B. A1 - Tie, Y. A1 - Fullerton, K.E. T1 - Coronavirus disease 2019 case surveillance: United States Y1 - 2020 DO - 10.15585/mmwr.mm6924e2 VL - 69 IS - 24 ER -