مشخصات پژوهش

عنوان	Prevalence of Toxocara spp. eggs in the Soil of Public Parks in Hamedan, Western Iran
نوع پژوهش	مقاله ارائه شده کنفرانسی
کلیدواژه‌ها	Toxocarisis, Zoonosis, Soil-transmitted helminths, Public area, Education
چکیده	Background and objectives: Toxocariasis is a neglected disease with international public health importance transmitted from animals to humans (zoonosis). It is caused by Toxocara canis and Toxocara cati which are common gastrointestinal helminths of cats and dogs with prevalences ranging from 1.8 to 78% worldwide. As the human patients especially children commonly occur infection via contaminated soils of public areas, this survey was aimed to provide data on the Toxocara species eggs contamination in the soil of public parks of Hamedan city, capital of Hamedan Province in west of Iran. Methodology: Between April and May 2019, a total of 200 soil samples were collected from 20 public parks from all geographical areas of the city. From each park four to ten soil samples were taken according to the area of the parks i.e. separate samples were collected from every 50 steps. Soil sample of approximately 200 g were collected at a depth of 3 cm, stored in plastic bags and taken to the laboratory. For detection of eggs, soil samples were dried overnight at room temperature and sifted through a 150 μm mesh sieve. About 2 gm of powdery soil was subjected to a normal sucrose flotation method. Light microscopic examinations by trained personnel were carried out and photomicrographs were taken from positive samples. Result: Microscopic evaluation of specimens revealed that 14 samples (11.67%) collected from ten public parks in Hamedan (50.0%) were contaminated with Toxocara species eggs. Intensity of contamination ranged from 12.5% to 50.0% in ten parks. All three developmental stages of Toxocara spp. eggs (monocell, 2 cells to pre-embryonated and embryonated) were observed. Furthermore, in two public parks Trichuris-type eggs were found in the soils. Discussion and Conclusion: This study provides the first information about contamination of public areas in Hamedan Province and suggests that a public awareness about this fact is needed. Education of citizens especially parents
پژوهشگران	سارینا ترکمن (نفر اول)، مهرانه زینلی (نفر دوم)، سامان فرجی (نفر سوم)، صبا نمایشی (نفر چهارم)، محمد زیبایی (نفر پنجم)، علیرضا سازمند (نفر ششم به بعد)