Background: Parasites INFECTION is one of the public health issues among children all over the world. The limited available data indicates that working children often suffer from poor health. Objectives: In this study, the frequency of INTESTINAL PARASITIC INFECTION in working children related to Sobh-e Rooyesh School was evaluated for the first time in Tehran, Iran. Methods: Fresh stool samples were collected from 175 working children associated with Sobh-e Rooyesh School in Tehran and transferred to Research Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, which then examined by the wetmountexamination with Phosphate-buffered saline and formalin ether concentration and agar plate culture. The trichrome staining was performed using stool samples conserved in Phosphate-buffered saline. Results: The results showed that in general the frequency of PARASITIC INFECTION was 77/175 (44%). The frequency of Blastocystis hominis as the most common parasites was (32. 6%) followed by (9. 1%) related to Giardia lamblia and (8%) samples were positive for Entamoeba coli. Frequency of helminthic INFECTION was 3/175 (1. 7%) including 2/175 (1. 1%) Hymenolepis nana and 1/175 (0. 57%) Ascaris lumbricoides. Conclusions: The frequency of INTESTINAL PARASITIC INFECTIONs was relatively high among working children in Tehran. Frequency of protozoan INFECTION was more than that of helminth INFECTION. It is suggested that additionally necessary treatment, health education and personal hygiene should be provided to prevent transmission.

Background: INTESTINAL PARASITIC INFECTION is one of the major public health problems in developing countries. Children are more vulnerable to these INFECTIONs. In addition, the prevalence of INFECTION is different among various communities, hence, there is a need for the periodical prevalence evaluation. This study was performed to define the prevalence of INTESTINAL PARASITIC INFECTION among the students of South Khorasan Province, eastern Iran in 2007.Methods: A cross-sectional study was performed on 2169 students aged 6-11 years in six cities of South Khorasan Province in 2007. Three stool specimens were collected from each student. Specimens were examined with direct wet and formalin ethyl acetate method. Data were analyzed with SPSS version 15 software.Results: From a total 2169 students, 47.7% were infected with one or more INTESTINAL parasites. Almost 33.4% were pathogen parasites. The most common parasite wasGiardia (28.7%). The prevalence rate of INFECTION was significantly higher in rural area than that of urban area (P=0.001). The prevalence of INFECTION was also much more common in those students whose parents were less educated.Conclusion: Prevalence of INTESTINAL PARASITIC INFECTION in this region is remarkable. Public health education and using healthy water are recommended.

Introduction: Malnutrition is one of the most important health problems in developing countries, especially in school students.Objective: To determine of relationship between INTESTINAL PARASITIC INFECTION and wasting and growth stunting incidence among primary students in rural areas of Kashan, in the year of 2008.Materials and Methods: In this Case-Control study, 65 students with wasting and 65 students with growth stunting were chosen as case groups, also 65 students without malnutrition were chosen as control group. The National Center of Health Statistic (NCHS) growth charts was used as normal standard. The nutritional status was measured by Waterlow classification indicators. (The ratio of weight to height (wasting) and height to age (stunting) for pathogen INTESTINAL parasites diagnosis). Three serial fecal samples from students in case and control groups was collected during different days, in addition Cellophane tape method for Enterobius vermicularis eggs was performed in all of them.Results: According to data, there were no significant relation between Pathogen INTESTINAL PARASITIC INFECTION and wasting and growth stunting (P=0.08 and P=0.18) respectively.Conclusion: The possibility of causing major detrimental effect on natural status of children by light parasitism is low.

INFECTION is one of the cardinal difficulties in the children with acute leukemia and is the leading cause of mortality among them. The prevalence of INFECTION in these patients has several reasons including usage of cytotoxic agents, corticosteriods, broad consumption of antibiotics, duration of confinement in hospital, defective of cellular and humoral Immunity, neutropenia and dysfunction of neutrophils. Despite the fact that INTESTINAL PARASITIC INFECTION is a rather frequent finding and a health problem in developing countries, in our experience the incidence of helminthic and protozoa INFECTIONs among children with leukemia was uncommon. Totally 141 patients with leukemia and 70 cases of control group were examined in a period of 12 months, which 40% and 2.8% of former and latter groups, had INTESTINAL pathogen and non-pathogen parasites, respectively. When we compared the frequency of PARASITIC INFECTION in the control group with the leukemic children, we found no significant difference. It is speculated that PARASITIC INFECTIONs may uncommon in these children for numerous reasons such as immunologic and pharmacologic parameters.

Introduction: The Purpose of this study was to determine the prevalence of INTESTINAL PARASITIC INFECTION in 6 years old Children in Birjand and its association with some demographic Factors. Methods: This study was done in 1381 in 399 children of 6 years old, chosen through systematic sampling. Demographic information obtained through interview and questionnaire. To diagnose INTESTINAL PARASITIC INFECTION direct smear, flotation and scotch test were done. For every child stool exam was done three times in three days. Results: The results show that %57.1 of children at least was infected by one parasit. %53/6 had pathogen parasit, included Giardia Lamblia in %38.1. Enterobius vermicularis in %22.1, Hymenolepis nana in %3.8 and Ascaris lumbricoides in %0.8. In %12 nonpathogen parasit was seen either alone or with pathogen ones. This nonpathogen type includes Chilomastix mesnili %6.9, Tricomonas INTESTINALis in %3 and Entamoeba coli in %4. In %43.1 one Pathogen, in %10 two pathogen and in %0.5 three Pathogen were seen simultaneously. The prevalence of PARASITIC INFECTION in two sexes has no significant difference the prevalence of PARASITIC INFECTION had significant association with the parents, level of schooling, father's occupation and their neighborhood. Discussion: The results show that PARASITIC INFECTION specially Giardia in children in Birjand is high factors such as improving the knowledge of parents, improving the economical situation of families, the hygiene education in personal and social fields and treating infected patients, play an important role in reducing the rate of INTESTINAL PARASITIC INFECTION.