Mice were i.p. injected with a therapeutic dose (100 mg/kg) of gentamicin at 3 h after MRSA infection and then followed by 50 mg/kg/d (Espersen et al., 1994 (link)). In some experiments, mice were treated s.c. with 50 mg/kg/d linezolid (Pfizer Inc.) or 150 mg/kg/d vancomycin beginning 2 h after MRSA infection (Reyes et al., 2011 (link); Niska et al., 2013 (link); Schuch et al., 2014 (link)). Control mice received PBS. All antibiotic treatment and sham injections continued through day 10 after MRSA infection.