Prevalence of Intestinal Helminths among Inhabitants of Cambodia (2006-2011)

Yong, Tai Soon; Chai, Jong Yil; Sohn, Woon Mok; Eom, Keeseon S.; Jeoung, Hoo Gn; Hoang, Eui Hyug; Yoon, Cheong Ha; Jung, Byung Mun; Lee, Soon Hyung; Muth, Sinuon; Socheat, Duong

doi:10.3347/kjp.2014.52.6.661

Cited by 39 publications

(41 citation statements)

References 14 publications

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“…Several molecular epidemiologic surveys have also reported that N. americanus and A. ceylanicum are the two most common hookworm species infecting humans and dogs in Asia. [6][7][8][9][10] Prevalences of hookworms in Cambodia are reportedly very high, 18 and are predominantly due to N. americanus and A. ceylanicum (51.6% equal prevalence): only 3.2% of people were found infected with A. duodenale. 6 In Thailand, the principal hookworm species infecting humans was confirmed as N. americanus.…”

mentioning

confidence: 99%

First Molecular Identifications of Necator americanus and Ancylostoma ceylanicum Infecting Rural Communities in Lower Myanmar

Aung¹,

Htoon²,

Tin³

et al. 2017

The American Society of Tropical Medicine and Hygiene

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Abstract. Hookworms are enteric parasitic roundworms infecting an estimated 400 million persons worldwide. Herein, we provide the first molecular identifications of human hookworms from certain parts of rural Lower Myanmar. DNA was extracted from hookworm-positive stool samples, as determined by microscopy. DNA sequences of the partial internal transcribed spacer 1, full length 5.8S gene, and partial internal transcribed spacer 2 were determined and compared with available hookworm sequences from public databases. Of the 11 polymerase chain reaction-positive samples, eight (Bago Region, N = 4; Mon State, N = 4) yielded sequences with high similarity to those of Necator americanus. A further three sequences (Mon State, N = 2; Bago Region, N = 1) showed high similarity with those of Ancylostoma ceylanicum. The latter is primarily a parasite of dogs and represents a zoonosis. Given that different species of hookworms exhibit different epidemiological and biological characteristics, accurate identification is essential for the planning and execution of effective control programs for hookworm infections.Human hookworm infection remains a main public health problem, particularly in developing countries in tropical and subtropical regions due to poor sanitation and hygiene practices.

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confidence: 99%

First Molecular Identifications of Necator americanus and Ancylostoma ceylanicum Infecting Rural Communities in Lower Myanmar

Aung¹,

Htoon²,

Tin³

et al. 2017

The American Society of Tropical Medicine and Hygiene

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“…Previous studies have shown high rates of hookworm and other helminth infections among Cambodian adults. 4,5 The Cambodian Ministry of Health recommends that pregnant women receive one dose of deworming treatment (mebendazole) after the first trimester 6 ; however, the benefit of this one dose (if taken) is in question as its efficacy appears low, with a cure (egg-negative after treatment) rate of only ∼18-36% for helminth infections in school-aged children in neighboring Lao People's Democratic Republic. 7 We acknowledge that the effectiveness of deworming treatments also largely depends on the types of parasitic infections present.…”

Section: Introductionmentioning

confidence: 99%

“…2 Hookworm infections are a major contributor to anemia and are endemic in Cambodia. 4 Humans contact hookworms through exposure to eggs and larvae in soil that is contaminated by fecal matter. Previous studies have shown high rates of hookworm and other helminth infections among Cambodian adults.…”

Section: Introductionmentioning

confidence: 99%

Improved Sanitation Facilities are Associated with Higher Body Mass Index and Higher Hemoglobin Concentration Among Rural Cambodian Women in the First Trimester of Pregnancy

Janmohamed

Karakochuk

McLean

et al. 2016

The American Society of Tropical Medicine and Hygiene

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Abstract. Multiple factors contribute to undernutrition in Cambodian women. Our aim was to determine if type of household sanitation facility was associated with body mass index (BMI) and hemoglobin (Hb) concentration among pregnant women. Women (N = 544) from 75 villages in Kampong Chhnang Province had their height, weight, and Hb measured (HemoCue Hb 201 + ) in the first trimester. Sociodemographic and household characteristics were collected. Multivariable linear and logistic regression models were used for analyses. Approximately 40% (N = 221) of women reported primarily using an 'improved' sanitation facility (closed pit latrine) and ∼60% (N = 323) used 'non-improved' facilities (open defecation). Mean ± standard deviation (SD) BMI was higher among women with improved versus non-improved facilities (19.9 ± 3.0 kg/m 2 versus 19.4 ± 2.3 kg/m 2 ; P = 0.01). Mean ± SD Hb concentration was also higher among women with improved versus non-improved facilities (118 ± 12 g/L versus 114 ± 14 g/L; P = 0.001). Anemia prevalence (Hb < 110 g/L) was higher among women with non-improved facilities (34% versus 25%; P = 0.04). An improved sanitation facility was a positive predictor of BMI (β = 0.57 kg/m 2 ; 95% confidence interval [CI] = 0.10, 1.04) and Hb concentration (β = 2.94 g/L; 95% CI = 0.53, 5.35), adjusting for age, parity, household size, village, gestation week, source of drinking water, and iron folic acid supplementation. Poor sanitation was associated with lower BMI and Hb concentration among pregnant Cambodian women. This warrants multisectoral approaches involving the health, nutrition, water, and sanitation sectors to effectively improve maternal health in Cambodia.

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“…3 Cambodia is located in southeast Asia and is divided into 24 provinces. 4 More than two-thirds of the population do not have access to improved sanitation facilities and clean drinking water. The main source of drinking water for most inhabitants is rainwater.…”

Section: Introductionmentioning

confidence: 99%

Prevalence and Risk Factors for Intestinal Parasitic Infection in Schoolchildren in Battambang, Cambodia

Liao

Chiu

Chiang

et al. 2017

The American Society of Tropical Medicine and Hygiene

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Abstract. Most intestinal parasitic infections (IPIs), commonly endemic in tropical resource-poor developing countries, are neglected tropical diseases. Parasitic infections and malnutrition are most commonly found in children. We determined the prevalence of IPIs and the risk factors in Battambang Province, northwestern Cambodia, from August to September 2015. This study collected 308 valid questionnaires and specimens from Dontri (173, 56.2%) and Kon Kaêk (135, 43.8%) primary schools. All stool samples were examined using Chang's Feces Examination Apparatus through the merthiolate-iodine-formaldehyde technique. Headache (259, 84.1%), recurrent cough (249, 80.8%), and abdominal pain (235, 76.3%) were the most common symptoms as detected from questionnaire investigation. A total of 155 students were positive for any parasite type; a single parasite type was observed in 97 students (31.5%), two types in 40 students (13.0%), three types in 14 students (4.6%), and four types in four students (1.3%). Nine gastrointestinal parasite species (three helminths and six protozoa) were identified in the stool samples. The most common parasites in schoolchildren were Giardia intestinalis (31.5%) and Entamoeba histolytica/dispar (17.5%). This is the first IPIs study, and more than half of the schoolchildren were infected with parasite species in Moung Russey District of Battambang Province. We found nine parasite species, including helminths and protozoa, and pathogenic protozoa were the main source of IPIs. Improving the detection method, sanitation facilities, and personal hygiene as well as utilizing combined drugs are all important measures to greatly reduce IPIs in Cambodian schoolchildren.

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Prevalence of Intestinal Helminths among Inhabitants of Cambodia (2006-2011)

Cited by 39 publications

References 14 publications

First Molecular Identifications of Necator americanus and Ancylostoma ceylanicum Infecting Rural Communities in Lower Myanmar

First Molecular Identifications of Necator americanus and Ancylostoma ceylanicum Infecting Rural Communities in Lower Myanmar

Improved Sanitation Facilities are Associated with Higher Body Mass Index and Higher Hemoglobin Concentration Among Rural Cambodian Women in the First Trimester of Pregnancy

Prevalence and Risk Factors for Intestinal Parasitic Infection in Schoolchildren in Battambang, Cambodia

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