I did seven stool samples, 4 biopsies 14 blood tests and 2 specialists a dermatologist and a disease specialists said I had no parasites. I have strongyloidiasis detected by 1 stool specimen from a vet friend and verified by my GP in a blood test just for strongyles. My GP was very reluctant to order the blood test he thought I had crohns disease the other 2 drs diagnosed me with a viral protozon and gave me flagyl and steroids. vet friend tells me strongyloides are found in undercooked meat and the soil. i am a plumber and hunt fish and live in florida never been out of the country