See if he will at least get tested. Have the blood test ran. Maybe they won't be like me, and show negative when you clearly are positive. The reason my blood test came back negative, is because mine is disseminated. I took a lot of steroids before I knew I had an infection, prednisone, I.V. Decodron for migraines about 30 times...weakened my immune system and allowed the parasites to spread all over my body.