antibiotic resistance human 5 adult 4 bacterial infection 4 female 4 male 4 Article 3 Escherichia coli 3 aged 3 amoxicillin plus clavulanic acid 3 cefotaxime 3 ceftriaxone 3 Anti-Bacterial Agents 2 Drug Resistance, Bacterial 2 Humans 2 Penicillins 2 Staphylococcus aureus 2 Streptococcus agalactiae 2 ampicillin 2 antibiotic sensitivity 2 antiinfective agent 2 bacterium identification 2 bacterium isolation 2 ciprofloxacin 2 major clinical study 2 microbial sensitivity test 2 middle aged 2 newborn 2 nonhuman 2 penicillin derivative 2