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Evaluation of the epidemiological situation of intestinal schistosomiasis using the POC-CCA parasite antigen test and the Kato-Katz egg count test in school-age children in endemic villages in western Côte d'Ivoire.
Parasite
October 2024
Laboratoire de Biodiversité et Gestion des Ecosystèmes Tropicaux, Unité de Recherche en Génétique et Epidémiologie Moléculaire, UFR Environnement, Université Jean Lorougnon Guédé, Daloa, Côte d'Ivoire.
Article Synopsis
- Schistosomiasis is a widespread disease in Côte d'Ivoire, and a study compared the conventional Kato Katz (KK) test with the more sensitive point-of-care circulating cathodic antigen (POC-CCA) test to improve control strategies for intestinal schistosomiasis.
- A survey involving 554 schoolchildren from eight elementary schools found that the prevalence of intestinal schistosomiasis was significantly higher when using the POC-CCA (67%) compared to the KK test (10%), highlighting the need for more effective diagnostic methods.
- Activities such as swimming and fishing were linked to higher infection rates, indicating a strong association between lifestyle choices and schistosomiasis prevalence, suggesting the necessity for targeted interventions.
Molecular epidemiology and population genetics of Schistosoma mansoni infecting school-aged children situated along the southern shoreline of Lake Malawi, Malawi.
PLoS Negl Trop Dis
October 2024
Department of Tropical Disease Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom.
Article Synopsis
- Researchers studied intestinal schistosomiasis caused by Schistosoma mansoni in children living along the southern shoreline of Lake Malawi, five years after a disease outbreak, using advanced diagnostic techniques.
- They utilized various methods including microscopy and real-time PCR on fecal and urine samples to assess infection rates and found that the prevalence of S. mansoni varied greatly based on the diagnostic tool used.
- The study highlighted that while fecal-egg microscopy had very low sensitivity, the point-of-care test showed moderate sensitivity depending on how results were interpreted, also revealing notable DNA presence of another species, S. haematobium, in the samples.
Control and elimination of Schistosoma mansoni infection in adult individuals on Ukerewe island, northwestern Tanzania: baseline results before implementation of intervention measures.
BMC Infect Dis
October 2024
Medical Mission Institute, Salvatorstrasse 7, 97067, Würzburg, Germany.
Article Synopsis
- The study focuses on the prevalence and impact of schistosomiasis, specifically S. mansoni, in the adult population of Ukerewe island, Tanzania, where ongoing control measures have largely excluded adults.
- Out of 4,043 participants, the study found a 30.4% prevalence of S. mansoni infection, with varying intensity levels among individuals, and assessed morbidity using ultrasound.
- It also evaluated co-infections with hepatitis C, HIV, and hepatitis B among participants, revealing low prevalence rates for these diseases.
Home-Made Lateral Flow Test Strip Versus POC-CCA Assay for Detection of Active Schistosomiasis in Egypt.
Acta Parasitol
December 2024
Clinical Pathology, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
Background: For years, the Kato-Katz (KK) technique has been considered the gold standard for diagnosing schistosomiasis. The aim of this study was to compare the effectiveness of our previously developed gold nanoparticle-based lateral flow test strip (AuNPs-LFTS) for diagnosing active Schistosoma mansoni with that of the commercially available point-of-care Circulating Cathodic Antigen detection (POC-CCA) kit.
Methods: In this study, we collected sixty positive and twenty negative urine samples from patients in endemic hot spots in the Nile Delta, as well as from patients visiting the internal medicine clinic at Theodor Bilharz Research Institute (TBRI).
Prevalence of human schistosomiasis in various regions of Tanzania Mainland and Zanzibar: A systematic review and meta-analysis of studies conducted for the past ten years (2013-2023).
PLoS Negl Trop Dis
September 2024
The Nelson Mandela African Institution of Science and Technology, School of Life Sciences and Bioengineering, Arusha, Tanzania.
Schistosomiasis is a significant public health problem in Tanzania, particularly for the people living in the marginalized settings. We have conducted a systematic review with meta-analysis on the prevalence of schistosomiasis to add knowledge towards the development of effective approaches to control the disease in Tanzania. Online databases namely, Pub Med, SCOPUS and AJOL, were systematically searched and a random effect model was used to calculate the pooled prevalence of the disease.
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