[1] Ctr Dis Control, Dept Hlth, Taipei, Taiwan
[2] Chung Shan Med Univ, Taipei, Taiwan
[3] Mackay Mem Hosp, Dept Internal Med, Div Infect Dis, Taipei, Taiwan
[4] Mackay Med Nursing & Management Coll, Taipei, Taiwan
[5] Chang Gung Univ, Chang Gung Mem Hosp, Dept Pediat, Div Pediat Infect Dis, Guishan, Taiwan
[6] Chang Gung Univ, Coll Med, Guishan, Taiwan
[7] Natl Taiwan Univ Hosp, Dept Internal Med, Taipei, Taiwan
[8] Natl Taiwan Univ, Coll Med, Taipei, Taiwan
[9] Chi Mei Hosp, Superintendent Off, Liouying, Taiwan
[10] Natl Yang Ming Univ, Taipei City Hosp, Dept Internal Med, Div Infect Dis, Taipei 112, Taiwan
[11] China Med Univ, Sch Med, Dept Pediat, Div Pediat Infect Dis, Taichung, Taiwan
[12] China Med Univ Hosp, Dept Pediat, Div Pediat Infect Dis, Taichung, Taiwan
[13] Chang Gung Univ, Chang Gung Mem Hosp, Dept Med, Div Infect Dis, Tao Yuan, Taiwan
[14] Chang Gung Univ, Sch Med, Tao Yuan, Taiwan
[15] Natl Def Med Ctr, Dept Internal Med, Taipei, Taiwan