CCR2 and infection: In both infection models, CCR2+Ly6Chi inflammatory monocytes (CCR2+Mo, throughout this manuscript CCR2+Mo is used as an abbreviation for inflammatory monocytes, defined as CD45+CCR2+Ly6ChiCD11b+Ly6G− leukocytes) were identified as essential innate effector cells that mediate bacterial and parasitic eradication [28], [29], [30], [31].