Objective To study etiological feature of hospital infection and risk factors with lung cancer chemotherapy patients,to provide a scientific basis for effective prevention. Methods Prospective investigation was used to observe the etiological feature of patients with nosocomial infection after lung cancer chemotherapy from medical oncology,analyze risk factors. Results 56 cases from 1 530 patients with nosocomial infection after lung cancer chemotherapy occurred in hospital,the infection rate was 3. 66%. 74...