Abstract
# Background Schistosomiasis is a parasitic disease that affects the health of hundreds of millions of people worldwide. Affordable diagnostic methods are necessary for developing countries to monitor schistosomiasis rates and treat infected individuals, particularly in, Madagascar, a country with the world’s fifth highest rate of schistosomiasis. # Methods We established the prevalence rate of schistosomiasis among the local population served by a clinic in rural northwestern Madagascar. Additionally, we compared different low-cost methods for schistosomiasis detection, including empirical diagnostic methods in use before this study. 500 patients were recruited in this study, of whom 380 received three tests—urine microscopy, point-of-care circulating cathodic antigen (POC-CCA) testing, and urinalysis to screen for *Schistosoma haematobium* and *Schistosoma mansoni*. # Results By combining these modalities, we recorded a schistosomiasis prevalence rate of 64.47%, which was significantly higher than the 4.84% of patients who were diagnosed and treated through previous empirical methods. # Conclusions Our results indicate that screening tests are a necessary component of schistosomiasis control programs. The clinic continued to use urinalysis strip testing and urine microscopy to detect schistosomiasis after this study and decided to discontinue the use of POC-CCA *S. mansoni* urine testing because of cost. Increased awareness of schistosomiasis resulting from this screening program led to the installation of multiple infrastructure projects in local communities to improve access to potable water, demonstrating community benefits of schistosomiasis screening that extend beyond the identification of infected individuals.
Highlights
Schistosomiasis is a parasitic disease that affects the health of hundreds of millions of people worldwide
We compared different low-cost methods for schistosomiasis detection, including empirical diagnostic methods in use before this study. 500 patients were recruited in this study, of whom 380 received three tests—urine microscopy, point-of-care circulating cathodic antigen (POC-CCA) testing, and urinalysis to screen for Schistosoma haematobium and Schistosoma mansoni
More than 700 million people live in areas endemic to schistosomiasis, a parasitic disease caused by flatworms of the genus Schistosoma.[1,2]
Summary
The objective of this study was to establish the prevalence rate of schistosomiasis among the local population served by the clinic and to compare different methods for schistosomiasis detection, including the empirical diagnostic methods used by the clinic before this study
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