近年来，随着抗生素药物种类增多和广泛应用，耐药菌所致感染增多，细菌产生水解抗生素的β内酰胺酶是耐药产生的重要原因，我们应用广州天心药业公司生产的国家四类新药新福欣进行了治疗呼吸系统严重感染的探讨。现将结果报道如下：１　资料与方法１１　一般资料　本组病 In recent years, with the antibiotic species increased and widely used, increased resistance caused by drug-resistant bacteria, antibacterial bacteria produce antibiotic β-lactamase resistance is an important cause of resistance, we use the Guangzhou Tianxin Pharmaceutical Company produced four countries New class of drugs Fuxin Xin for the treatment of severe respiratory infections. The results are reported as follows: 1 Materials and Methods 1  1 General Information The disease group