1. Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, P. R. China
2. Université de Lorraine, CNRS, Nancy, France
3. Laboratoire de Virologie, CHRU de Nancy Brabois, Vandoeuvre-lès-Nancy, France
4. Department of Microbiology and Environmental Toxicology, University of California at Santa Cruz, Santa Cruz, CA, USA