1. Treated with an only active antibiotic with enterobacteria (association with vancomycin, linezolid, daptomycin, metronidazole or clindamycin) between: cefotaxime, ceftriaxone, ceftazidime, cefepime, amoxicillin/clavulanic, piperacillin/tazobactam, ertapenem, imipenem, meropenem, ciprofloxacin or levofloxacin