[Xue, Min; Wang, Luying] Cent S Univ, Xiangya Hosp 3, Changsha, Hunan, Peoples R China.
[Tian, Qi; Zhu, Cuiming; Wang, Luying; Zhang, Tianyuan; Zhang, Nu; Zhong, Guangming] Univ Texas Hlth Sci Ctr San Antonio, Dept Microbiol Immunol & Mol Genet, San Antonio, TX 78229 USA.
[Zhu, Cuiming] Univ South China, Dept Microbiol, Hengyang, Hunan, Peoples R China.
[Morrison, Sandra; Morrison, Richard] Univ Arkansas Med Sci, Dept Microbiol & Immunol, Little Rock, AR 72205 USA.