[1] NIAID, Viral Pathogenesis Sect, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA
[2] NIAID, Vaccine Res Ctr, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA
[3] Univ Fed Rio de Janeiro, COPPE, Chem Engn Program, Inst Alberto Luiz Coimbra Posgrad & Pesquisa Engn, Rio De Janeiro, Brazil
[4] Harvard Med Sch, Beth Israel Deaconess Med Ctr, Ctr Virol & Vaccine Res, Boston, MA 02215 USA
[5] NIAID, Struct Informat Unit, Infect Dis Lab, NIH, 9000 Rockville Pike, Bethesda, MD 20892 USA
[6] Frederick Natl Lab Canc Res, Electron Microscopy Lab, Canc Res Technol Program, Frederick, MD 21702 USA
[7] Kansas State Univ, Coll Vet Med, Dept Diagnost Med Pathobiol, Manhattan, KS 66506 USA
[8] Bioqual, Rockville, MD 20852 USA
[9] Walter Reed Army Inst Res, Translat Med Branch, Silver Spring, MD 20910 USA
[10] Walter Reed Army Inst Res, Viral Dis Branch, Silver Spring, MD 20910 USA
[11] NIAID, Biostat Res Branch, Div Clin Res, NIH, Bethesda, MD 20852 USA