Chlorine dioxide (ClO2) has been used for over 100 years to combat all types of bacteria, viruses and fungi successfully. It acts as a disinfectant, since in its mode of action it turns out to be an oxidant. [1# BiologicalEfficacyList ] It is very similar to the way our own body acts, for example in phagocytosis, where an oxidation process is used to eliminate all kinds of pathogens. Chlorine dioxide (ClO2) is a yellowish gas that, to date, has not been introduced into the conventional pharmacopoeia as an active ingredient, although it is used on a mandatory basis to disinfect and preserve blood bags for transfusions. [2# Alcide studies on blood disinfection] It is also used in most bottled waters suitable for consumption, since it does not leave toxic residues; besides, it is a gas that is very soluble in water and evaporates from 11 ºC.The recent Covid-19 coronavirus pandemic demands urgent solutions with newapproaches. Therefore, chlorine dioxide (ClO2) in low-dose aqueous solution promises to be an ideal, rapid and effective solution. All too often, the solution is in the simplest of ways. The approach is as follows: on the one hand we know that viruses are absolutely sensitive to oxidation and on the other hand, if it works in human blood bags against viruses such as HIV and other pathogens, why would it not work organically against thecoronavirus?

Chlorine dioxide removes viruses through the process of selective oxidation in a very short time. It does this by denaturing the capsid proteins, and then oxidizes the genetic material of the virus, disabling it. The application of chlorine dioxide (ClO2) orally or even parenterally is a different approach that has been studied by Andreas Ludwig Kalcker for more than thirteen years with a result of three pharmaceutical patents for parenteral use.