Jian-Feng Han, Rui-Yuan Cao, Yong-Qiang Deng, Xue Tian, Tao Jiang, E-De Qin* and Cheng-Feng Qin*
* Corresponding authors: E-De Qin qinede@sohu.com - Cheng-Feng Qin cfqin@hotmail.com
Virology Journal 2011, 8:106 doi:10.1186/1743-422X-8-106