>>11597210>Can this work in theory?Creating a harsh environment that is bad enough to kill diseases, viruses or cancer in the body but not bad enough to kill most human cells is a common medical technique from chemotherapy to induced fevers.
If the virus was more susceptible to a "disinfectant" than human cells are then yes, it would be effective in the right amount.
Though the human cells near or at the source of injection would be disproportionately exposed to the disinfectant than the rest of the body so you would have to find away around that.
