OBJECTIVE To find out the clinic air disinfectant effect and the damage to human body between air aerosol sprayer of hydrogen peroxide and peracetic acid. METHODS New ninety eight sickrooms were randomly disported into two groups. The group of using peracetic acid was a control one. Then the clinic air disinfectant effect and the damage between two groups were observed. RESULTS After thirty minutes, to sample through flat exposure method. The total number of bacteria of two groups reached the third grade of environment eligible standard without pathogenic bacteria being checked. Hydrogen peroxide had not obvious mucous membrane stimulation and hypersusceptible reaction to human body. But peracetic acid had mucous membrane stimulation and hypersusceptible reaction to human body. CONCLUSIONS The air disinfection using aerosol sprayer is still an available method when there are no person in new sickrooms or extended sickrooms. At present, some chemical disinfectant methods that have strong poisonous reactions and pollute environment, such as peracetic acid, have been restricted to be used because of thrill, toxicity to human body and causticity to goods. But the method of dynamic air disinfectant machine that can be used in the situation of ventilation, dust catching, decontaminating, and ultraviolet irradiation, at the same time having someone has became a new idea of air disinfection.

OBJECTIVE To discuss the reasons of causing mistakes in the nosocomial infection reports.METHODS We collected 183 cases with inaccurate reports and analyzed them by the prospective method.RESULTS The major reasons of causing the inaccurate nosocomial infection reports were the ill-defined infection time,inaccurate diagnostic standard,and the lack of clinic training.CONCLUSIONS It can reduce the inaccurate nosocomial infection reports,advance the level of nosocomical infection diagnosis,and improve the work efficiency through special training,in paralleling with the manager of nosocomial infection going deep into sickroom and communicating with clinicians.

OBJECTIVE To know the real condition of the prevalence of nosocomial infection(NI) in our hospital,in order to enhance the consciousness of nosocomial infection control in whole staff,so that this work will be done well.METHODS We got the data through bed-side examination and medical records and made a statistic analysis.RESULTS Among 926 investigated patients,59 patients(6.37%) had 60 cases(6.48%) NI.Departments with high risk were for hematology,neurosurgery,and Chinese-Western combination surgery.The common NI sites were the lower respiratory tract,urinary tract and surgical sites;Pseudomonas aeruginosa was a main pathogen for the lower respiratory tract.The antibiotic use rate was 40.39%.The high risk factors were patients with unconsciousness,undergoing tracheotomy or urethral catheterization and so on.The postoperative use appeared to be higher than usual.The antibiotics used included 42 kinds.CONCLUSIONS It is recommended that specific surveillance be conducted in Departments with high risk for nosocomial infection,the wide-spectrum antibiotics should be stressed in order to reduce drug resistance and nosocomial infection.