it appeared that the active suppression of the t-cell mediated immune response by c. parvum-activated macrophages was not seen during the course of l. monocytogenes infection , and that the lower levels of dth seen in mice pre-treated with c. parvum were attributable to an insufficient antigenic stimulus following the accelerated elimination of bacteria by non-specifically activated macrophages during the early phase of infection .
C0301872
immune response
C0003320
antigenic