using peritoneal exudate cells from nonimmunized mice in a suspension bactericidal assay , however , we found that peritoneal neutrophils obtained early during the inflammatory process ( 4 hr after elicitation ) and macrophages obtained later during inflammation ( maximal listericidal activity at 48 hr after elicitation ) were able to kill listeria in vitro .
C0003962
peritoneal exudate
C0031153
peritoneal