Once a month on the full moon for the rest of your life would be a good start. If you have the constitution to catch them and host them once, you have the constitution to catch them and host them again every time you come in contact with an egg. parasites are ubiquitous to the environment. They are everywhere. The eggs of some species float in the air. You would have to wear a sterile space suit 24/7 like the bubble boy to avoid re-exposure. Routine maintenance is the only way to keep them from recolonizing for most people because the work of strengthening the immune system to an invincible condition, eating an impeccable diet, and/or maintaining an immaculately clean enough environment to prevent re-exposure is very difficult, if not impossible, to accomplish. Especially when the people who are not yet sick enough to do something about it, are reinfecting those of us who are fighting them.

Die off hell. LOL. Welcome aboard, just a few more weeks and we'll feel better..