[1] CDCP, Natl Ctr Immunizat & Resp Dis, Coronavirus & Other Resp Viruses Div, 1600 Clifton Rd,MS H18-6, Atlanta, GA 30329 USA
[2] CDCP, Natl Ctr Immunizat & Resp Dis, Coronavirus & Other Resp Viruses Div, Atlanta, GA USA
[3] Vanderbilt Univ, Med Ctr, Dept Biostat, Nashville, TN USA
[4] Univ Michigan, Dept Internal Med, Ann Arbor, MI USA
[5] Univ Michigan, Dept Microbiol & Immunol, Ann Arbor, MI USA
[6] Baylor Scott & White Hlth, Temple, TX USA
[7] Texas A&M Univ, Coll Med, Temple, TX USA
[8] Baylor Coll Med, Temple, TX USA
[9] Intermt Med Ctr, Dept Med, Murray, UT USA
[10] Univ Utah, Salt Lake City, UT USA
[11] Univ Colorado, Sch Med, Dept Emergency Med, Aurora, CO USA
[12] Univ Iowa, Iowa City, IA USA
[13] Wake Forest Sch Med, Dept Med, Winston Salem, NC USA
[14] Johns Hopkins Univ, Sch Med, Dept Med, Baltimore, MD USA
[15] Hennepin Cty Med Ctr, Dept Emergency Med, Minneapolis, MN USA
[16] Albert Einstein Coll Med, Montefiore Med Ctr, Dept Med, Bronx, NY USA
[17] Univ Washington, Dept Emergency Med, Div Pulm Crit Care & Sleep Med, Seattle, WA USA
[18] Univ Washington, Dept Emergency Med, Seattle, WA USA
[19] Baystate Med Ctr, Dept Med, Springfield, MA USA
[20] Univ Michigan, Sch Publ Hlth, Ann Arbor, MI USA
[21] Oregon Hlth & Sci Univ, Dept Med, Portland, OR USA
[22] Emory Univ, Dept Med, Atlanta, GA USA
[23] Cleveland Clin, Dept Med, Cleveland, OH USA
[24] Stanford Univ, Sch Med, Dept Emergency Med, Stanford, CA USA
[25] Univ Calif Los Angeles, Dept Med, Los Angeles, CA USA
[26] Univ Miami, Dept Med, Miami, FL USA
[27] Washington Univ, Dept Med, St Louis, MO USA
[28] Ohio State Univ, Dept Med, Columbus, OH USA
[29] Beth Israel Deaconess Med Ctr, Dept Emergency Med, Boston, MA USA
[30] Baylor Scott & White Hlth, Dallas, TX USA
[31] Texas A&M Univ, Coll Med, Dallas, TX USA
[32] Henry Ford Hlth, Dept Publ Hlth Sci, Detroit, MI USA
[33] Henry Ford Hlth, Div Infect Dis, Detroit, MI USA
[34] Univ Arizona, Dept Emergency Med, Tucson, AZ USA
[35] Yale Univ, Sch Med, New Haven, CT USA
[36] Vanderbilt Univ, Med Ctr, Dept Med, Nashville, TN USA
[37] Vanderbilt Univ, Med Ctr, Dept Hlth Policy, Nashville, TN USA
[38] Vanderbilt Univ, Med Ctr, Dept Pediat, Nashville, TN USA
[39] Vanderbilt Univ, Med Ctr, Dept Emergency Med, Nashville, TN USA
[40] Vanderbilt Univ, Med Ctr, Vanderbilt Inst Clin & Translat Res, Nashville, TN USA
[41] CDCP, Influenza Div, Natl Ctr Immunizat & Resp Dis, Atlanta, GA USA