Evaluation of ozonated water using ASTM E1174 for standardized testing of handwash formulations for healthcare personnel

Publication date: October 2018Source: Journal of Hospital Infection, Volume 100, Issue 2Author(s): K. Nakamura, K. Saito, J. Kashiwazaki, T. Aoyagi, K. Arai, Y. Hara, S. Kobari, H. Mori, K. Ohashi, Y. Takano, M. Kaku, K. KanemitsuSummaryRemoval of bacteria by handwashing with ozonated water was evaluated using the ASTM E1174 standard test method. Thirty healthy volunteers were assigned randomly to three groups: ozonated water, antimicrobial soap and water, and non-antimicrobial soap and water. A 3 log10 cfu reduction was achieved by washing hands with ozonated water or antimicrobial soap and water. However, ozonated water was not significantly superior to non-antimicrobial soap and water. Ozonated water may remove bacteria from the hands to at least a similar extent as that by non-antimicrobial soap and water in the absence of visible dirt or body fluid contamination.
Source: Journal of Hospital Infection - Category: Infectious Diseases Source Type: research