11. Their major concern : an outbreak of some unpleasant waterborne disease, like giardiasis or cryptosporidiosis. 12. Other infections, including Cryptosporidiosis and Giardiasis can also be associated with an increase in IELs. 13. There are an estimated 1.2 million U . S . cases of symptomatic giardiasis annually. 14. Today the illness caused by the parasite is called either " lambliasis " or " giardiasis ". 15. The most common source of chronic diarrhea picked up while traveling is giardiasis , Dr . Wilson says. 16. Human diseases transmitted by microtine rodents include cystic hydatid disease, tularemia, bubonic plague, babesiosis, giardiasis 17. Giardiasis is a disease of the small intestine caused by a protist parasite " Giardia lamblia ".18. In the case of asymptomatic giardiasis , there can be malabsorption with or without histological changes to the small intestine. 19. He was getting fistfuls of prescriptions : antibiotics, fast-acting anti-venins, drugs for dysentery, hepatitis and giardiasis . 20. The villous atrophy seen on biopsy may also be due to unrelated causes, such as tropical sprue, giardiasis and radiation enteritis.