DOCTORS found parasites burrowed into a woman's cornea after she made a common mistake while swimming in a pool. Maureen Cronin first thought she had an eyelash stuck in her eye, but the pain ...

It is caused by Giardia lamblia, a water-borne parasite that is worldwide in distribution. The symptoms usually occur one to two weeks ... The rash is often referred to as a “bull’s eye” rash because ...