Giardia Giardia This article giardia Giardia Giardia Giardia Giardia Giardia Giardia Giardia infection in the intestine Giardia giardia giardia infection (Mayo Clinic) (external site) Mayo Clinic Giardia Giardia Mayo Clinic Giardia giardia Giardia Giardia Mayo Clinic Giardia giardia Mayo Clinic giardiasis Giardia lamblia infection (Mayo Clinic) (external site)