[1] Mayo Clin, Mayo Vaccine Res Grp, 200 1st St SW, Rochester, MN 55905 USA
[2] Mayo Clin, Program Translat Immunovirol & Biodef, Rochester, MN 55905 USA
[3] Mayo Clin, Dept Internal Med, Rochester, MN 55905 USA
[4] Mayo Clin, Dept Pediat & Adolescent Med, Rochester, MN 55905 USA
[5] Task Force Global Hlth, Decatur, GA USA