Investigation and risk assessment of class Ⅰ environment faucets contamination in hospitals
OBJECTIVE To investigate the current state of microbial contamination in faucets and associated sinks of a classⅠ environment in a hospital.METHODS Object surface sampling of faucets and their associated sinks in all classⅠ environ-mental departments of a tertiary hospital was conducted during March to Apr.2023,bacterial culture methods were used to detect the current status of microbial contamination at the corresponding sampling points,and relevant information was collected to identify risk factors associated with the contamination.RESULTS The bacterial exceedance rate of faucet facili-ties in classⅠ environment of this hospital was 32.46％(74/228),and the highest detected bacteria were Pseudomonas aeruginosa(8.49％,9/106).Three strains of carbapenem-resistant Acinetobacter baumannii were also detected.Multi-variate logistic regression analysis showed that the cleanliness level of the room(OR=1.629,95％CI:1.091-2.434,P=0.017)and the duration of usage(OR=0.489,95％CI:0.262-0.911,P=0.024)had a statistically significant influences on microbial contamination of faucet facilities.CONCLUSION The faucets of Class Ⅰ environments in hospital are found to be severely contaminated,and there is an urgent need to develop cleaning and disinfection measures specifical-ly for classⅠ environments in order to prevent the occurrence of related nosocomial infections.
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