Analysis on monitoring results of disinfection effect in three hospitals in Zhejiang province before and during the COVID-19 epidemic
Objective To investigate disinfection effect of hospitals in Zhejiang province before and during the COVID-19 epidemic.Methods Retrospective investigation method was used to statistically analyze the monitoring results of disinfection effect of three hospitals in the province before and during the COVID-19 epidemic,and compare the difference of disinfection qualified rate.Results A total of 1 931 samples were monitored from 2017 to 2019 before the COVID-19 epidemic,with the total qualified rate of disinfection of 86.74%.A total of 1 850 samples were monitored from 2020 to 2022 during the COVID-19 epidemic,with the total qualified rate of disinfection of 93.14%,which was significantly higher than that before the pandemic(χ2=42.411,P<0.01).Quarterly monitoring results showed that total qualified rate of disinfection effect in every quarter after the outbreak was higher than the level in the same period before the outbreak(92.40%vs 89.02%,93.84%vs 84.24%;χ2=6.430 and 44.193,P<0.05).Compared with before the COVID-19 pandemic,the qualified rate of medical water and endoscope disinfection increased significantly during the pandemic(98.04%vs 63.31%,100.00%vs 96.26%;χ2=138.499 and 5.430,P<0.05).Conclusion The qualified rate of hospital disinfection has improved significantly since the COVID-19 outbreak,but the vulnerable spots of the disinfectant work such as operating room,hand hygiene and hospital sewage need to be strengthened.