[1] Thammasat Univ, Fac Allied Hlth Sci, Dept Med Technol, Bangkok, Thailand
[2] Univ Cincinnati, Cincinnati Childrens Hosp Med Ctr, Cincinnati, OH USA
[3] Mahidol Univ, Fac Med, Div Infect Dis & Trop Med, Dept Med,Siriraj Hosp, Bangkok, Thailand
[4] Mahidol Univ, Siriraj Hosp, Dept Microbiol, Fac Med, Bangkok, Thailand
[5] Mahidol Univ, Siriraj Hosp, Ctr Excellence Flow Cytometry, Off Res & Dev,Fac Med, Bangkok, Thailand