Comparison of stool examination techniques to detect Opisthorchis viverrini in low intensity infection

Charoensuk, Lakhanawan; Subrungruang, Ittisak; Mungthin, Mathirut; Pinlaor, Somchai; Suwannahitatorn, Picha

doi:10.1016/j.actatropica.2018.12.018

Cited by 33 publications

(27 citation statements)

References 14 publications

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“…The sensitivity and specificity of the same diagnostic method may differ across studies (Charoensuk et al, 2019, Laoprom et al, 2016, Sayasone et al, 2015, while different diagnostic methods may result in different results in the same survey. To partially taking into account the diversity of diagnostic methods, we assumed the same diagnostic method has similar sensitivity and specificity, and we considered the…”

Section: Discussionmentioning

confidence: 99%

“…Results showed that the odds of infection with FECT methods was significantly lower than that with Kato-Katz, which was consistent with results found by Lovis and colleagues (Lovis et al, 2009). In addition, most of the diagnostic methods in the surveys were based on fecal microscopic technique on eggs, which could not effectively distinguish between O. viverrini and minute intestinal flukes of the family Heterophyidae (eg heterophyid and lecithodendriid) (Charoensuk et al, 2019, Sato et al, 2010. Thus, our results may overestimate the O. viverrini infection risk in areas where heterophyid and lecithodendriid are endemic, such as Phongsaly, Saravane and Champasak provinces in Lao PDR (Sato et al, 2010, Chai et al, 2010, Chai et al, 2013, Nan and…”

Section: Discussionmentioning

confidence: 99%

“…was used to identify the best combination of predictors for the final model. According to previous studies (Aung et al, 2017, Forrer et al, 2012, Miyamoto et al, 2014, Wongsaroj et al, 2014, the infection risk in community and school may be different, and using different diagnostic methods may differ the observed prevalence (Charoensuk et al, 2019, Laoprom et al, 2016, Sayasone et al, 2015. Thus, the survey type (i.e., community-or school-based) and the diagnostic methods (i.e., Kato-Katz, FECT, or other methods) were kept in all potential models, while the other ten environmental and socioeconomic variables were put forth into the Bayesian variable selection process.…”

Section: Model Fitting and Variable Selectionmentioning

confidence: 94%

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Model-based spatial-temporal mapping of opisthorchiasis in endemic countries of Southeast Asia

Zhao

Feng

Doanh

et al. 2021

eLife

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Opisthorchiasis is an overlooked danger to Southeast Asia. High-resolution disease risk maps are critical but have not been available for Southeast Asia. Georeferenced disease data and potential influencing factor data were collected through a systematic review of literatures and open-access databases, respectively. Bayesian spatial-temporal joint models were developed to analyze both point- and area-level disease data, within a logit regression in combination of potential influencing factors and spatial-temporal random effects. The model-based risk mapping identified areas of low, moderate, and high prevalence across the study region. Even though the overall population-adjusted estimated prevalence presented a trend down, a total of 12.39 million (95% Bayesian credible intervals [BCI]: 10.10–15.06) people were estimated to be infected with O. viverrini in 2018 in four major endemic countries (i.e., Thailand, Laos, Cambodia, and Vietnam), highlighting the public health importance of the disease in the study region. The high-resolution risk maps provide valuable information for spatial targeting of opisthorchiasis control interventions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Model Fitting and Variable Selectionmentioning

confidence: 94%

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Model-based spatial-temporal mapping of opisthorchiasis in endemic countries of Southeast Asia

Zhao

Feng

Doanh

et al. 2021

eLife

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“…Previous studies demonstrated that PARASEP has a higher sensitivity than Kato-Katz and McMaster techniques for detecting Schistosoma mansoni, Ascaris lumbricoides, and Hymoenolepis nana [43,44]. However, in Thailand the technique showed a low sensitivity for the detection of light infections O. viverrini which increased higher infection intensities (at � 50 EPG) [45]. We restricted our diagnostic approach to egg detection.…”

Section: Study Limitationsmentioning

confidence: 99%

“…However, in Thailand the technique showed a low sensitivity for the detection of light infections O . viverrini which increased higher infection intensities (at ≥ 50 EPG) [ 45 ]. We restricted our diagnostic approach to egg detection.…”

Section: Study Limitationsmentioning

confidence: 99%

Opisthorchis felineus infection, risks, and morbidity in rural Western Siberia, Russian Federation

et al. 2020

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Background The liver fluke, Opisthorchis felineus, is widely distributed throughout Europe and large parts of the Russian Federation. In Western Siberia, information about opisthorchiasis is lacking although infection may lead to severe liver and bile duct diseases. We aimed to assess the current prevalence of O. felineus infection along with associated risk factors and morbidity in rural Western Siberia. Methods We conducted a community-based, cross-sectional study in the rural Shegarskiy district, Tomsk Oblast, Russian Federation. All household members (� 7 years) present on the survey day were enrolled (n = 600). Two stool samples per person were examined for helminth eggs, using PARASEP (DiaSys Ltd, UK). The number of eggs per gram (EPG) of feces was recorded. Each study participant was interviewed to determine risk factors, using a pretested questionnaire. An abdominal ultrasonography examination of liver and bile ducts was performed with a mobile, high resolution ultrasound device. In total, 488 persons completed assessments (two stool samples, completed questionnaires); of those, 436 individuals had an ultrasonography (US) examination. Results We observed a prevalence of O. felineus infection of 60.2%. Significant risk factors for infection were the consumption of river fish (odds ratio from adjusted analysis [aOR] 2.4, 95% CI

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Liver Flukes: Clonorchis and Opisthorchis

Saijuntha,

Sithithaworn,

Wangboon

et al. 2024

Advances in Experimental Medicine and Biology

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Comparison of stool examination techniques to detect Opisthorchis viverrini in low intensity infection

Cited by 33 publications

References 14 publications

Model-based spatial-temporal mapping of opisthorchiasis in endemic countries of Southeast Asia

Model-based spatial-temporal mapping of opisthorchiasis in endemic countries of Southeast Asia

Opisthorchis felineus infection, risks, and morbidity in rural Western Siberia, Russian Federation

Liver Flukes: Clonorchis and Opisthorchis

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