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Viral contamination on the surfaces of the personal protective equipment among health care professionals working in COVID-19 wards: A single-center prospective, observational study.
Peng, Li-Hao; Chen, Ya-Juan; Yang, Shi-Yi; Wang, Guo-Jiang; Gu, Yan-Hua; Shen, Bao-Liang; Liu, Li-Zhen; Xian, Rui-Xing; Li, Xian-Hua; Li, Shu-Yun; Dai, Zhen-Ni; Xu, Fei-Peng; Hu, Jian-Rong; Wang, Fei.
  • Peng LH; Department of Hospital Infection Management, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Chen YJ; Department of Critical Care Medicine, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China; Department of Nursing, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Yang SY; Department of Critical Care Medicine, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China; Department of Nursing, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Wang GJ; Department of Neurology, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Gu YH; Department of Nursing, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Shen BL; Department of Orthopedics, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Liu LZ; Department of Interventional, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Xian RX; Department of Gynecology and Obstetrics, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Li XH; Department of Nursing, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Li SY; Department of Nursing, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Dai ZN; Department of Nursing, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Xu FP; Department of Traditional Chinese Medicine, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China.
  • Hu JR; Department of Pulmonary and Critical Care Medicine, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China. Electronic address: jianronghu@126.com.
  • Wang F; Department of Critical Care Medicine, Jiading District Central Hospital Affiliated Shanghai University of Medicine & Health Sciences, Shanghai, China. Electronic address: chazwf@163.com.
Am J Infect Control ; 2022 Nov 12.
Article in English | MEDLINE | ID: covidwho-2276102
ABSTRACT

OBJECTIVE:

To evaluate potential viral contamination on the surfaces of personal protective equipment (PPE) in COVID-19 wards.

METHODS:

Face shields, gloves, the chest area of PPE and shoe soles were sampled at different time points. The samples were tested for the presence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by PCR, and the cycle threshold (CT) values were recorded.

RESULTS:

The positive rate was 74.7% (239/320) for all PPE specimens. The CT values of the samples were ranked in the following order face shields > chests > gloves > shoe soles (37.08±1.38, 35.48±2.02, 34.17±1.91 and 33.52±3.16, respectively; P for trend < .001). After disinfection, the CT values of shoe soles decreased compared with before disinfection (32.78±3.47 vs. 34.3±2.61, P = .037), whereas no significant effect of disinfection on the CT values of face shields, chests and gloves was observed. After disinfection, the CT values of specimens collected from shoe soles gradually increased; before disinfection, the CT values of shoe sole specimens were all less than 35.

CONCLUSIONS:

SARS-CoV-2 can attach to the surfaces of the PPE of healthcare professionals in COVID-19 wards, especially the shoe soles and undisinfected gloves. Shoe soles had the highest SARS-CoV-2 loads among all tested PPE items.
Keywords

Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Observational study / Prognostic study Language: English Year: 2022 Document Type: Article Affiliation country: J.ajic.2022.10.017

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Observational study / Prognostic study Language: English Year: 2022 Document Type: Article Affiliation country: J.ajic.2022.10.017