Prevalence of Strongyloides stercoralis and other intestinal parasitic infections among mentally retarded residents in central institution of southern Iran.

Paramedical School of Bandar Abbas, Hormozgan University of Medical Sciences, Bandar Abbas, Iran.
Asian Pacific Journal of Tropical Biomedicine 02/2012; 2(2):88-91. DOI: 10.1016/S2221-1691(11)60198-6
Source: PubMed

ABSTRACT To determine the prevalence of intestinal parasitic infections among mentally retarded residents of rehabilitation center of Bandar Abbas, Hormozgan province, southern Iran.
A cross-sectional study was carried out in central rehabilitation institute of Hormozgan province in summer 2010. Fecal samples of all 133 residents (72 males, 61 females) aged 3-52, were collected in triplicate. Specimens were examined by direct smear, formalin-ether concentration techniques and stained by permanent Trichrome, Ziehl-Neelsen stains. Statistical analysis was conducted by SPSS 13.5.
Intestinal parasitic infections were seen in 48.5% (64 out of 133 subjects: 53.4% in males and 46.6% in females). Strongyloides stercoralis with 17.3% showed the highest incidence followed by Entamoeba coli (9.8%), Blastocystis hominis (7.5%), Giardia lamblia (2.3%), Endolimax nana (2.3%), Hymenolepis nana (0.8%), Oxyuris vermicularis (0.8%), and Chilomasix mesnili (0.8%). Double infections were found to be as: Strongyloides stercoralis + Giardia lamblia (2.3%), Entamoeba coli + Giardia lamblia (1.5%), Entamoeba coli + Blastocystis hominis (1.5%), Oxyuris vermicularis + Entamoeba coli (0.8%), Strongyloides stercoralis + Entamoeba coli (0.8%), respectively.
Our findings reveal that strongyloidiasis is a common disease among mentally retarded population in southern Iran.

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    ABSTRACT: Background: Strongyloides stercoralis causes strongyloidiasis, one of the major parasitic infections in human worldwide. Objectives: This study was carried out to examine the prevalence of S. stercoralis in the state of Lorestan, west of Iran, using a comparative diagnostic approach. Materials and Methods: Stool specimens from a random population sample were examined with light microscope, using direct fecal smear, formalin-ether concentration, and nutrient agar plate culture. Results: The prevalence of S. stercoralis in this study was 0.07%. The statistical random sample in this study was 2839 people whose stool specimens were collected and examined using nutrient agar plate culture. The results showed only two infected persons. The same procedure was administered using direct fecal smear and formalin-ether concentration, which showed no result. Conclusions: As a precautionary measure, a stool test based on nutrient agar plate culture is recommended for detection of S. stercoralis.
    04/2014; 9(2):e16815. DOI:10.5812/archcid.16815

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