[1]Institute of Military Veterinary Medicine Academy of Military Medical Sciences Changchun 130122 P.R.China;
[2]Division of Wildlife Conservation and Nature Reserve Management Greater Xing’an Mountains Forestry Group Corporation Jiagedaqi 165000 P.R.China;
[3]Division of Wildlife Conservation and Nature Reserve Management Jilin Forestry Administration Changchun 130022 P.R.China;
[4]State Forestry Administration Shenyang 110034 P.R.China;
[5]Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Disease and Zoonose Yangzhou University Yangzhou 225009 P.R.China;
disease transmission; hybrid wild boars; Northeast China; serological and molecular survey; viral diseases;