Reduced bacterial clearance and survival in macFOXP1tg mice. (A) Bacterial colony counts (mean ± SD) per 100 μL peritoneal lavage fluid 2 days after intraperitoneal inoculation of S aureus bacteria (30 × 106) into the peritoneal cavity of wild-type (n = 11) and macFOXP1tg (n = 12) mice. (B) Gram stain of peritoneal lavaged fluid 2 days after intraperitoneal inoculation of S aureus (original magnification ×40/0.65). (C) Kaplan-Meier survival curves in wild-type (n = 6) and macFOXP1tg (n = 6) mice after intraperitoneal inoculation of S aureus (80 × 106) bacteria.