I have a theory. There is no COVID-19 virus. Instead, it's a bio-chemical toxin that is making people sick when it is inhaled. Part of the makeup of the bio-chemical toxin is graphene oxide (GO), a nano-particle, which is being used to carry the bio-chemical toxin. It is interesting that GO toxicity produces the same symptoms as COVID-19 does. Headaches, loss of smell and taste, low temperature, and a weakened immune system. Many people report a metallic taste when they are first poisoned by it. It is being spread through the atmosphere. One can use their imagination on how it is/was being deployed.