I just got back from the vet and my cat has roundworms. The vet didn't seemed concerned because it's very common. I, on the other hand, am freaking out!!! I read that when humans get it, the larvea migrate though the body and infect brain tissue, eyeball tissue, etc. An infection can cause blindness! So...please please tell me something to calm me down. How common is it for a human to get it from a cat? I've never been a germaphobe but I feel like the microscopic eggs could be anywhere! I could have already ingested them! Help!!!