Cryptosporidial infection in the children referred to Qazvin Qods Hospital (2003)

Cryptosporidiosis is associated with diarrheal illness worldwide. In this study to determine prevalence of infection of this parasite was studied in the children with diarrhea coming to Qods children’s hospital of Qazvin during 2003. In this cross sectional study all of children coming with diarrhea (1000 cases) were examined in 2003. Every case gave 3 stool speciments. These speciments prepared by formalin-Ether method and smears were stained by zeihl-Neelsen modified, then were studied by 10X, 100X power under a microscope and results were analyzed with SPSS. Prevalence of cryptosporidiosis was 0.3 %. There were 803 cases (80.3 %) from 1000 cases without tissue reaction. The most infection were among cases with tissue reaction (1.5%) and the least was among cases without tissue reaction (0%) and this difference was significant (P = 0.008). Low prevalence of cryptosporidiosis in Qazvin can present such as a positive health index. In addition our study suggests every cases of diarrhea with positive tissue reaction in their stool exams should be studied for cryptosporidium protozoa.