It's the toxic world we live in, 87088. Doc has posted about a healthy person being able to ward off these bugs. But a person has to get healthy, first and get rid of the bugs in order to do it.
I think that the maintenance dosage posted in this thread is the price we have to pay for living in a world as toxic as this one is right now. It doesn't seem to me to be too big a price to pay for one's health IF they really want to live.