I have no doubt it sterilizes the blood And I'm sure that could be very good thing and very helpful for a lot of people
However, there are organisms such as Borrelia burgdorferi that burrow deep deep down into the tissues into the joints into the brain etc., Places in the body that I believe that the current is unable to get to. If the current was able to get to Those areas and kill pathogens we Would see a lot of testimonies from people with Lyme disease who had been cured with zappers. We do not see those testimonies.