BMC public health 2021 https://researcherprofiles.org/profile/547710180 34563163 Reses HE, Fajans M, Lee SH, Heilig CM, Chu VT, Thornburg NJ, Christensen K, Bhattacharyya S, Fry A, Hall AJ, Tate JE, Kirking HL, Nabity SA, U.S. COVID-19 Household Investigation Team