1Veterinary Parasitology Department, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
2Veterinary Pathology Department, Vietnam National University of Agriculture, Trau Quy, Gia Lam, Ha Noi, Vietnam
3Institute of Biotechnology (IBT), Vietnam Academy of Science and Technology (VAST), 18. Hoang Quoc Viet, Cau Giay, Ha Noi, Vietnam JFIF d d Ducky d qhttp://ns.adobe.com/xap/1.0/