1. College of Public Health, Zhengzhou University, Zhengzhou, China
2. USDA-ARS, Diet, Genomics, and Immunology Laboratory, Beltsville Human Nutrition Research Center, Beltsville, MD, USA
3. Affilated Hospital of Qingdao Binhai University, Qingdao, China
4. USDA-ARS, Animal Parasitic Diseases Laboratory, Beltsville, MD, USA