[1] Univ Texas Med Branch, Dept Pediat, Galveston, TX 77555 USA
[2] Chang Gung Childrens Hosp, Taoyuan Hsien, Taiwan
[3] Chang Gung Univ, Tao Yuan, Taiwan
[4] AVI BioPharma Inc, Corvallis, OR USA
[5] Univ Texas Med Branch, Dept Microbiol & Immunol, Galveston, TX 77555 USA
[6] Univ Texas Med Branch, Sealy Ctr Vaccine Dev, Galveston, TX 77555 USA