WNV in some cases causes disorientation to the patient. This happens especially if the person frequently complains about headaches. It would have been caused by the swelling of brains and an individual end up in a stupor state. Stupor refers to a condition whereby a person loses cognitive function and becomes totally impassive. You can recognize that the patient is in a stupor when they sound or act confused, show derangement, or disorientation.
Treatment should be administered to a person at this stage. If it happens when they are under treatment, the doctor must look into the treatment plan and maybe consider changing it as it would not be working for the patient. If left untreated, chances are high that the patient will slip into a coma as inflammation on the brain would have become excess. Secondary infections caused by this virus are prone at this stage, hence calls for urgent treatment.