Survival rates of A. baumannii-infected mice treated with compound 62520. The survival of mice was evaluated for 7 days after bacterial infection. (A) Neutropenic mice were infected with 5 × 108 CFUs of A. baumannii ATCC 17978 and, after 2 h, they were injected with different doses of compound 62520. (B) Immunocompetent mice were infected with 1.0 × 109 CFUs of A. baumannii ATCC 17978 and, after 2 h, they were injected with 2.8 mg/kg of compound 62520. (C) Immunocompetent mice were infected with 2.0 × 108 CFUs of A. baumannii 2140 and, after 2 h, they were injected with 5.6 mg/kg of compound 62520. All control mice were injected with 100 μL of PBS.