What "scientific evidence" are you expecting?
When someone gets a stool test and it comes back negative, and then they do a cleanse and feel better and crap out parasites, that means the stool test was a false negative.
Do you seriously expect there to be a collection of scientific evidence for that? Like the person will carry their dead parasites
into the doctor's office or laboratory, have a medical workers look at it and go, "Oh golly, the test was a false negative," and then put it in a public database?
You may be a troll, but you are not that stupid. Your crafty argument tactics and articulate capabilities betray your decent level of intelligence, so you know darn well that there will be no "scientific evidence" slapped up on a government-funded website for false negative statistics.
You deliberately ask for something that you know cannot be delivered to your satisfaction, although it does not prove your overall zealous, blind regurgitation of CDC claims as true, believing that this tactic will make you look victorious.
This is a very common tactic of more experienced trolls. Why don't you go harass some people who are not ill and suffering.