[Liu, Yan; Zhang, Shun Ke; Yang, Sheng Hui; Zeng, Tie Bing; Gong, Yan Hui; Zeng, Qing Ren; Zhang, Zu Ping; Cai, Li Ting] Cent S Univ, Xiangya Sch Med, Cell & Mol Biol Expt Ctr, Changsha 410013, Hunan, Peoples R China.
[Liu, Yan; Zeng, Tie Bing] Nanhua Univ, Sch Med, Dept Parasitol, Hengyang 421001, Hunan, Peoples R China.
[Li, Ben Wen] Washington Univ, Sch Med, Div Infect Dis, St Louis, MO 63110 USA.
