Disinfectant wipes are appropriate to control microbial bioburden from surfaces: use of a new ASTM standard test protocol to demonstrate efficacy

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• 作者：S.A. Sattar^a ; C. Bradley^b ; R. Kibbee^a ; R. Wesgate^c ; M.A.C. Wilkinson^b ; T. Sharpe^d ; J-Y. Maillard^c ; ^{MaillardJ@cardiff.ac.uk" class="auth_mail" title="E-mail the corresponding author}
• 关键词：Acinetobacter baumannii ; Decontamination ; Disinfection ; High-touch environmental surfaces ; Infection prevention and control ; Nosocomial pathogens ; Wipes ; Staphylococcus aureus ; Wiping
• 刊名：Journal of Hospital Infection
• 出版年：2015
• 出版时间：December 2015
• 年：2015
• 卷：91
• 期：4
• 页码：319-325
• 全文大小：365 K

文摘

The use of disinfectant pre-soaked wipes (DPW) to decontaminate high-touch environmental surfaces (HTES) by wiping is becoming increasingly widespread in the healthcare environment. However, DPW are rarely tested using conditions simulating their field use, and the label claims of environmental surface disinfectants seldom include wiping action.

Aim

To evaluate the new E2967-15 standard test specific to wipes, particularly their ability to decontaminate surfaces and to transfer acquired contamination to clean surfaces.

Methods

ASTM Standard E2967-15 was used by three independent laboratories to test the efficacy of five types of commercially available wipe products. All data generated were pulled together, and reproducibility and repeatability of the standard were measured.

Findings

All the commercial DPW tested achieved a >4 log₁₀ (>99.99%) reduction in colony-forming units (CFU) of Staphylococcus aureus and Acinetobacter baumanii with 10 s of wiping, but only one DPW containing 0.5% accelerated H₂O₂ prevented the transfer of bacteria to another surface.

Conclusion

This newly introduced standard method represents a significant advance in assessing DPW for microbial decontamination of HTES, and should greatly assist research and development, and in making more relevant and reliable claims on marketed DPW.