[Li, Zhongyu; Chen, Ding; Zhong, Youmin; Zhong, Guangming] Univ Texas Hlth Sci Ctr San Antonio, Dept Microbiol & Immunol, San Antonio, TX 78229 USA.
[Li, Zhongyu] Cent S Univ, Xiangya Med Sch, Dept Parasitol, Changsha 410083, Peoples R China.
[Li, Zhongyu; Wu, Yimou; Chen, Chaoqun] Univ S China, Dept Microbiol & Immunol, Hengyang, Hunan, Peoples R China.
[Zhong, Guangming] Univ Texas Hlth Sci Ctr San Antonio, Dept Microbiol & Immunol, 7703 Floyd Curl Dr, San Antonio, TX 78229 USA.