It is not just the blood, but every aspect and every part of the whole being that needs to be cleansed and purified.
If you cleanse the blood, that leave them hiding in the lymph and other fluids and on and around the organs. Pulsing helps but does not get all.
The herbs help with more, but there are still some left.
The ParaZapper UZI-3 and the ParaZapper MY are broad spectrum microbe killers. I am not saying this to sell zappers but just trying to elucidate the missing link that may be overlooked. Seriously, there is a difference. The ParaZapper CC2 is good to but if you are serious, you want better.