3Macinnes J,Gottschalk M,Lone A G,et al.Prevalence of Actinobacillus pleuropneumoniae,Actinobacillus suls,Haemophilus parasuis,Pasteurella multocida,and Streptococcus suis in representative Ontario swine herds[J].Can J Vet Res,2008,72(3):242-248.
4Olvera A,Ballester M,Nofrarias M,et al.Differences in phagocytosis susceptibility in Haemophilus parasuis strains[J].Vet Res,2009,40(3):24.