The mission of this team is to develop efficient livestock vaccines and test the safety and efficacy of the candidate vaccines in the disease animal models, including vaccines against Mycoplasma hyopneumoniae (Mhp), M. hyorhinis (Mhr), porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus type 2 (PCV2), porcine epidemic diarrhea virus (PEDV), Actinobacillus pleuropneumonia (App). We also focus on the development of subunit vaccines and bivalent vaccines.