Evaluation of Kato–Katz examination method in three areas with low-level endemicity of schistosomiasis japonica in China: A Bayesian modeling approach

Zhang, Yuanyuan; Luo, Jie; Liu, Yueming; Wang, Qizhi; Chen, Jun-Hu; Xu, Min; Xu, Jing; Wu, Jing; Tu, Xiaoming; Wu, Guan-Ling; Zhang, Zhao-Song; Wu, Hongxun

doi:10.1016/j.actatropica.2009.05.020

Cited by 61 publications

(47 citation statements)

References 41 publications

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“…The sensitivity of this diagnostic technique depends on the rate of egg excretion (Engels et al, 1996), which can be very low or even absent when para-site transmission is low or when intestinal fi brosis has occurred. Hence, a major disadvantage of parasitological detection as a diagnostic technique is that it exhibits low sensitivity in areas of low endemicity (Lin et al, 2008;Zhang et al, 2009), labor-intensive and time-consuming. This approach is not suitable for large-scale disease surveillance and improvement in diagnosis is needed.…”

Section: Introductionmentioning

confidence: 99%

Some epidemiological and serological studies on schistosomiasis in Najran area, Saudi Arabia

Elshahawy¹,

Mohamed

Adail

2016

Helminthologia

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SummarySchistosomiasis is a major cause of morbidity and mortality and has been estimated to infect over 200 million people. Diagnosis of schistosomiasis by detection of specifi c antibodies is likely to be more sensitive than the traditional method of diagnosis by detection of eggs in stool or urine. Therefore the present study was the fi rst attempt to highlight the seroepidemiology of schistosomiasis among the general population of Najran City, southern of Saudi Arabia, as well as to achieve the performance of the diagnostic tests used. A total of 180 participants attending King Khaled hospital in Najran Province, Saudi Arabia, over a one year period, from September 2013 to September 2014 were screened for the presence of Schistosoma antibody in their blood serum using an indirect hemagglutination assay (IHA). Specifi c immunoglobulin (Ig) G antibody was evaluated using an enzyme-linked immunosorbent assay (ELISA). Out of the 180 samples of sera tested using IHA, 32 (20 %) were found to be positive with a titer ranging from 1:160 to 1:1280, while 42(23.2 %) revealed Schistosoma IgG. A positive relationship was found between the seroprevalence of schistosomiasis and age of tested participants, especially in the age group of 20-40 years old. Additionally, prevalence of infection was more in males (36 %) than females (7.5 %), and showed statistical significance (P < 0.001). Similarly, there was signifi cant association between the presence of Schistosoma antibodies and the nationality of residence, and education of participants (P < 0.05). The current investigation reveals an alarmingly high prevalence of schistosomiasis among participants in Najran, southern region of Saudi Arabia and this supports an urgent need to re-evaluate the current control measures and implement an integrated, targeted and effective schistosomiasis control measures.

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Section: Introductionmentioning

confidence: 99%

Some epidemiological and serological studies on schistosomiasis in Najran area, Saudi Arabia

Elshahawy¹,

Mohamed

Adail

2016

Helminthologia

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“…The Kato-Katz method has been extensively used under conditions of precarious laboratorial infra-structure, mainly because of its low operational costs, practicality and ability to be quantitative. Nevertheless, after specific treatment and in individuals with a low worm burden and those in low-prevalence areas, this technique has been found to be less sensitive (Kongs et al 2001, Ferrari et al 2003, Lin et al 2008, Zhang et al 2009). Studies conducted in areas with those characteristics have demonstrated a direct relationship between the number of slides analysed and the infection rate of the disease (Enk et al 2008).…”

mentioning

confidence: 99%

Evaluation of two coproscopic techniques for the diagnosis of schistosomiasis in a low-transmission area in the state of Minas Gerais, Brazil

Siqueira¹,

Coelho²,

Oliveira³

et al. 2011

Mem. Inst. Oswaldo Cruz

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“…Theoretically, the Oncomelania snail cannot be infected with S. japonicum when the temperature is lower than 3.24 • C (Sun et al, 2003). Due to the lack of precise means for diagnosing schistosomiasis, Bayesian hierarchical models were developed to evaluate sensitivity and specificity of the examination method for S. japonicum in host populations (Carabin et al, 2005;Zhang et al, 2009a;Zhou et al, 2004b). Studies comparing the efficiency of serological tests (enzyme-linked immunosorbent assay, ELISA in short) and stool examination (Kato-Katz) suggest that it would be feasible to employ ELISA exclusively, rather than combining ELISA and stool examination for the estimation of the prevalence of S. japonicum infection in large-scale epidemiological settings (Wang et al, 2006).…”

Section: Relationships Between Factors/variablesmentioning

confidence: 99%

Schistosomiasis japonica: Modelling as a tool to explore transmission patterns

Xu¹,

Lv²,

Qingyun³

et al. 2015

Acta Tropica

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Evaluation of Kato–Katz examination method in three areas with low-level endemicity of schistosomiasis japonica in China: A Bayesian modeling approach

Cited by 61 publications

References 41 publications

Some epidemiological and serological studies on schistosomiasis in Najran area, Saudi Arabia

Some epidemiological and serological studies on schistosomiasis in Najran area, Saudi Arabia

Evaluation of two coproscopic techniques for the diagnosis of schistosomiasis in a low-transmission area in the state of Minas Gerais, Brazil

Schistosomiasis japonica: Modelling as a tool to explore transmission patterns

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