en Health Health Original Research Original Research Human infection with the coccidia parastite, Isospora belli is relatively uncommon. Human isosporiasis in Iran was first reported by Hadjian in 1961. 5 Yearly, about 200 stool samples have been examined by direct and formol-ether concentration techniques in the Protozoology Unit, School of Public Health, Tehran University of Medical Sciences. In addition to the common protozoal and helminthic infections, there were 10 cases of human infection with Isospora belli during alO year stool examination in our laboratory. 45 47 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-723&slc_lang=en&sid=1 M REZAEIAN 20031947532846006393 20031947532846006393 Yes From the Dept. of Prolozoology, School of Public Health, Tehran University of Medical Sciences, Tehran, Islamic Republic of Iran.