****!!!!***!!!!**** (2014) {Disinfection in room air; or Treatment inside body of person through inhalation. Includes **valuable** study of different ClO2 air concentrations being administered to mice in different timings after being exposed to flu virus.} "chlorine dioxide gas, even at an extremely low concentration of e.g. 0.05 to 0.1 ppm, is capable of deactivating virus or depriving its infectability" " In some of the experiments, however, the introduction of chlorine dioxide gas was effected with delays relative to the introduction of the virus-containing aerosol... to check whether the chlorine dioxide gas can prevent onset of viral disease resulting from the virus which has entered the lungs already."