1. Hubei Key Laboratory of Embryonic Stem Cell Research, Hubei University of Medicine, Shiyan 442000, China
2. Institute of Virology, Hubei University of Medicine, Shiyan 442000, China
3. Department of Infectious Diseases, Renmin Hospital, School of Basic Medical Sciences, Hubei University of Medicine, Shiyan 442000, China
4. Department of Pediatrics, University of Minnesota, Minneapolis, MN 55455, USA
5. Department of Medicine, University of Minnesota Medical School, Minneapolis, MN 55455, USA
6. Department of Food Science and Nutrition, CFANS, University of Minnesota, St Paul, MN 55108, USA