In a joint research project with the Miyazaki University Center for Animal Disease Control, we verified the effect of ozonated water (using the product name Handlex) on SARS-CoV-2 (*1). As a result, a large number of plaque spots (white spots of different sizes; findings of viral growth) were observed in Vero cells inoculated with virus solution + culture solution or virus solution + sterile tap water (a and b in the figure below). However, no plaque was observed in Vero cells (c in the figure below) inoculated with virus solution + 10 mg/L ozonated water. This indicates that ozonated water inactivated the SARS-CoV-2 (details being prepared for treatise).

*1: SARS-CoV-2 virus (SARS-CoV-2/Hu/DP/Kng/19-027, LC528233)
Shared by Kanagawa Prefectural Institute of Public Health.

Virus solution + Culture solution (Treatment time: 5 seconds)

Virus solution + Sterile tap water (Treatment time: 5 seconds)

Virus solution + Ozonated water 10 mg/L (Treatment time: 5 seconds)