I dont want to belabor the point. I believe you said ""Second, chickens are carriers of strongyloides and since I raise chickens, I am at constant risk. I use the zapper and have not had any problems." So it is unclear how you know that zapper worked, if you don't even know that were ever infected? Yes, I know what Strongylodies can do, and how it infects people, from personal experience. Zapper will not work against it. Again, as someone who used the zapper, without any benefit, I can attest to it. So I have to concur with others that I don't put much stock in such methods.