TY - JOUR AU - Barbieri, Ramona AU - Coppo, Erika AU - Bottaro, Luigi Carlo AU - Piazzai, Paolo AU - Illiberi, Orietta AU - Dusi, Pier Andrea AU - Revello, Rita AU - Usiglio, David AU - Mori, Marco AU - Reali, Silvia AU - Devoto, Gian Luigi AU - Santoriello, Luisa AU - Ronca, Agostina AU - Marchese, Anna AU - Debbia, Eugenio A. PY - 2012/06/30 Y2 - 2024/03/29 TI - Epidemiological study of pathogens isolated from blood in Liguria during 2011 JF - Microbiologia Medica JA - Microbiol Med VL - 27 IS - 2 SE - Original Articles DO - 10.4081/mm.2012.2313 UR - https://www.pagepressjournals.org/mm/article/view/mm.2012.2313 SP - AB - Objectives. An epidemiological study addressed to identify the most represented pathogens isolated from blood and to evaluate their antibiotic susceptibility patterns, was conducted. Methods. Five clinical microbiology laboratories, homogenously distributed in Liguria, were required to collected all consecutive non-duplicates strains isolated from blood cultures during March 2011 to May 2011. the strains were sent to the reference laboratory (Section of Microbiology, DISC, University of Genoa, Italy). Results. A total of 159 microorganisms were enrolled, including 81 Gram positive, 69 Gram negative and 9 fungi.The most represented pathogens were: Escherichia coli (35), Staphylococcus aureus (26), S. epidermidis (20), S. hominis (10). Samples were collected mainly from medicine (59 isolates).Among the staphylococci, the most active molecules were: vancomycin (100% of susceptible strains), teicoplanin (93.4%), trimethoprim-sulfamethoxazole (83.8%) and tobramycin (61.6%). Enterococci showed rates of resistance to vancomycin of 25%. Enterobacteriaceae exhibited resistance to ampicillin (76.9%), ceftriaxone (44.4%), ciprofloxacin (43.3%), trimethoprim-sulfamethoxazole (36.6%) and ceftazidime (32.2%). Conclusions. The data show a higher incidence of Gram positive (51%) in comparison to Gram negative (43.4%). Gram-positive strains showed a high resistance level to fluoroquinolones (92.3%) while Gram-negative resulted resistant to ceftriaxone (44.4%) and fluoroquinolone (43.3%). ER -