Long-lasting Chlorine Dioxide (ClO2) Aqueous Solution Presented by Taiko Pharmaceutical and Kitasato University Inactivates over 99.99% of SARS-CoV-2 (COVID-19 Virus) (Solution Also Effective against Alpha and Gamma Variants of SARS-CoV-2)

OSAKA, Japan, June 11, 2021 /PRNewswire/ — Taiko Pharmaceutical Co., Ltd. based in Osaka, Japan, hereby announced that long-lasting chlorine dioxide (ClO2) aqueous solution (*1) inactivated over 99.99% of SARS-CoV-2 (COVID-19 Virus), including its Alpha and Gamma variants (*2), in a test conducted in collaboration with Kitasato Institute/Kitasato University in Tokyo, Japan.

SARS-CoV-2 strains were mixed with Taiko Pharmaceutical’s long-lasting ClO2 aqueous solution (*1) at the ratio of 1:19 (154 ppm (*3) in aqueous solution remained active for three years’ storage) and the infectivity titer was determined by the plaque assay (*5) at 10 sec and 60 sec using TMPRSS2-expressing Vero E6 cells (*4). The results revealed that the ClO2 aqueous solution inactivated over 99.99% of SARS-CoV-2, including the two variant strains.