You misunderstood that part- no, they can be killed from many types of herbs and such out there- not just from Olive Leaf- thank God!
Olive Leaf is a good thing to use - but if you cant find any, dont despair.
Dr. Christopher's formulas are good too. Anytime you hear us mention about a different item that kills parasites- such as pineapple or garlic, or olive leaf, you may want to try that ALONG WITH any anti- parasite
things you will be taking. Not in place of.
Good luck and tell us how it goes !