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  • Title: Influence of a mycoplasma respiratory tract infection on sheep erythrocyte and complement receptor-bearing cell composition in the respiratory tract of swine.
    Author: Charley B, Salmon H.
    Journal: Am J Vet Res; 1979 Sep; 40(9):1257-9. PubMed ID: 316662.
    Abstract:
    Pulmonic and peripheral blood lymphocyte subpopulations in healthy and Mycoplasma suipneumoniae-infected pigs were compared. The T- and the B-lymphocyte populations were counted, the B cells by the complement receptor (zymosan-complement rosettes) technique and the T cells by the ED-rosette technique (sheep RBC-dextran rosettes). The T cells were found to predominate among pulmonic, as well as blood, lymphocytes. Pulmonic B-cell and blood T-cell percentages were increased after mycoplasma respiratory tract infection. However, blood B-cell and pulmonic T-cell percentages were not significantly affected. A significant (P less than 0.001) correlation between pulmonic and blood T-lymphocyte compositions was found; conversely, no correlation was observed between blood and pulmonic B-cell percentages. These data could imply that pulmonic B cells are predominantly involved in local immune reactions after a mycoplasma respiratory tract infection.
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