The resistance rates of E.coli were: 2.8%for aztreonam, 7.5%for ceftriaxone, 8.4%for cefotaxime, 9.3%for ceftazidime and 15.0%for cefoperazone.

• 肺炎克雷伯菌对5种抗生素的耐药率：头孢噻肟为23.；1%25；头孢哌酮为23