Fga^−/− and Fga^+/− mice infected with UMAA2616. P values of survival difference are indicated in all panels. — represents Fga^−/−; ----, Fga^+/− littermate controls. (A) Five Fga^−/− mice and 5 sibling control Fga^+/− mice were infected with 7 × 10⁷ CFU UMAA2616. (B) Five Fga^−/− mice and 5 sibling control Fga^+/− mice were infected with 10⁶ CFU UMAA2616. (C) Ten Fibγ^390-396A and wild-type sibling controls, 9 Fga^−/−, and 10 Fga^+/− sibling control were infected with 2.8 × 10⁶ CFU UMAA2616.