Parasites, Hosts and Diseases

"Entamoeba coli"

Brief Communications

Prevalence of Intestinal Protozoans among Schoolchildren in Suburban Areas near Yangon, Myanmar: Min-Jae Kim, Bong-Kwang Jung, Jaeeun Cho, Deok-Gyu Kim, Hyemi Song, Keon-Hoon Lee, Seon Cho, Thi Thi Htoon, Htay Htay Tin, Jong-Yil Chai; Korean J Parasitol 2016;54(3):345-348.
Published online June 30, 2016; DOI: https://doi.org/10.3347/kjp.2016.54.3.345

Abstract
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Although intestinal protozoans are common etiologies of diarrhea, few studies have been conducted in Myanmar. This study planned to investigate the prevalence of Giardia lamblia, Entamoeba coli, Entamoeba histolytica, and Endolimax nana among schoolchildren and their guardians in suburban areas near Yangon, Myanmar. We performed a cross-sectional survey among schoolchildren and their guardians from 7 primary schools in South Dagon and Hlaing Thar Yar districts, Yangon, Myanmar. Stool samples were observed with a microscope after concentration technique and iodine staining. Total 821 stool samples, including 556 from schoolchildren and 265 from guardians, were examined. The median age was 6 years old for schoolchildren and 36 years old for guardians. A 53.1% of the school children and 14.6 % of the guardians were males. The overall prevalence of each intestinal protozoan species was as follows: 3.4% (28/821) for G. lamblia; 3.5% (29/821) for E. coli; 1.2% (10/821) for E. histoytica, and 3.0% for E. nana. This study showed that intestinal protozoans are common in primary schoolchildren and their guardians in suburban areas near Yangon, Myanmar. Health interventions, such as hand washing education, improvement of sanitation, and establishment of water purification systems are urgently needed in this area.

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Intestinal protozoan infections and echinococcosis in the inhabitants of Dornod and Selenge, Mongolia (2003): Sun Huh, Jae-Ran Yu, Jong-Il Kim, Choijamts Gotov, Radnaabazar Janchiv, Jeong-Sun Seo; Korean J Parasitol 2006;44(2):171-174.
Published online June 20, 2006; DOI: https://doi.org/10.3347/kjp.2006.44.2.171

Abstract
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The status of intestinal parasitic infections and seroprevalence of cystic echinococcosis in the inhabitants in Dornod and Selenge, Mongolia, was observed with stool and serum samples from 165 and 683 residents from August 9 to August 15, 2003. A total of 10 inhabitants (6.1%) were found to be infected with protozoan cysts or oocysts by stool examinations; 7, 1 and 2 cases with Entamoeba coli, Giardia lamblia and Cryptosporidium parvum, respectively. A total of 62 people (9.1%) revealed significantly high levels of specific antibodies against Echinococcus granulosus by enzyme-linked immunosorbent assay (ELISA). The surveyed areas are rural areas and the sanitized tab water is not available. There is a possibility of endemic transmission of water-borne protozoan diseases in these areas. The clinical echinococcosis is needed to be searched from the seropositive inhabitants.

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