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慢性支气管炎(下称老慢支)最常见老年性疾病之一。近年来,由于耐药菌株的改变及条件致病菌和新菌种的出现,使控制肺部感染成为治疗中的重点。笔者复习近年文献并讨论如下:1 老慢支呼吸道感染病源体变化有关医院内感染目前报道甚多,一是病源菌的交又感染,二是医源性感染。老年人本身细胞免疫水平低,自身代偿和调节能力差,极易受病毒感染后的细菌侵袭,这是容易发生医院
Chronic bronchitis (hereinafter referred to as chronic bronchitis) one of the most common senile diseases. In recent years, due to the change of drug-resistant strains and the emergence of opportunistic pathogens and new species, the control of lung infection has become the focus of treatment. I review the literature in recent years and discussed as follows: 1 old chronic bronchitis infection changes in the body of the source of infection in the hospital currently reported many, one of the pathogen infection and infection, the second is iatrogenic infection. The elderly themselves low level of cellular immunity, self-compensation and poor regulatory capacity, highly susceptible to bacterial infection after viral infection, which is prone to hospital