[1] USA, Div Virol, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA
[2] USA, Diagnost Syst Div, Med Res Inst Infect Dis, Ft Detrick, MD 21702 USA
[3] 168th Multifunct Med Battal, Med Detachment 5, Seoul, South Korea
[4] 65th Med Brigade USAMEDDAC Korea, Force Hlth Protect & Prevent Med, Seoul, South Korea
[5] Mil Infect Dis Res Program, Ft Detrick, MD 21702 USA