Current Situation and Analysis of Bacterial Contamination of Air and Surface in Pediatric Outpatient Clinics of Three Tertiary Hospitals
10.11969/j.issn.1673-548X.2025.03.024
- VernacularTitle:3所三甲医院儿科门诊空气及物表细菌污染现状与分析
- Author:
Yujiao WANG
1
;
Li FU
;
Bingtao LIU
Author Information
1. 200003 上海,海军军医大学第二附属医院儿科
- Publication Type:Journal Article
- Keywords:
Pediatric clinics;
Air microorganism;
Bacterial contamination;
Investigation and research;
Disinfection
- From:
Journal of Medical Research
2025;54(3):132-136
- CountryChina
- Language:Chinese
-
Abstract:
Objective To assess bacterial contamination in the indoor air and on item surface(hereinafter referred to as surface)within the pediatric outpatient departments of three tertiary hospitals,and provide reference for improving disinfection management and protecting children and medical staff.Methods A high-flow bioaerosol sampler was used to collected and monitored microorganisms from 42 indoor air samples across various surfaces of pediatric outpatient clinics within three tertiary hospitals.Additionally,surface sam-pling was employed to examine frequently touched surfaces by both medical staff and patients,with the objective of identifying bacterial colony-forming units(CFU).Results In the pediatric outpatient clinics,the B Hospital showed a significantly lower count of bacterial colonies in general air samples compared to A Hospital and C Hospital(P＜0.05).Conversely,A Hospital had a significantly lower count of bacterial colonies on frequently touched surfaces by both medical staff and patients than B Hospital and C Hospital(P＜0.05).Airborne CFU exceeded normal levels in all three hospitals.Notably,the waiting hall of A Hospital had a significantly higher concentration of airborne pathogens compared to its consultation and nebulization rooms(P＜0.05).At B Hospital,there was no significant difference in airborne pathogen levels between the consultation room and the waiting hall(P＞0.05).Meanwhile,the waiting hall and infusion room at C Hospital both had significantly higher pathogen levels than the consultation room(P＜0.05).The CFU of pathogens on sur-faces frequently contacted by patients or their family members were significantly higher at B Hospital and C Hospital than those contacted by medical staff(P＜0.05).In contrast,there was no significant difference in pathogen CFU detected on the surface of patients or fami-ly members in hospital A and that of medical staff(P＞0.05).Pathogenic bacteria,including staphylococcus aureus,bacillus cereus,and streptococcus pneumoniae,were detected in the air and on surfaces across all three hospitals,with a notable presence in consultation rooms,waiting halls,and infusion rooms.Conclusion The pediatric outpatient clinics of the three tertiary hospitals exhibit varying levels of microbial contamination,underscoring the need for vigilant and standardized management of routine disinfection practices.
