1. College of Veterinary Medicine, South China Agricultural University, Guangzhou, China.
2. Department of Food Science & Technology, School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, China.
3. Department of Food Science and Nutrition, University of Maryland, College Park, Maryland.
4. Microbiology Laboratory, Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China.
5. Shanghai Municipal Ke-Ma-Jia Technology Center for Microbiology, Shanghai, China.