The Global Schistosomiasis Alliance Diagnostic Workstream has developed a communications piece listing all commercially available diagnostics for schistosomiasis
Health ministries currently lack effective tools for monitoring and evaluation of schistosomiasis control programmes. Egg detection can be used, but the cost, challenges of obtaining samples, and the need for trained personnel and equipment limit the frequency of monitoring. The purpose of this TPP ...is to guide the development of new diagnostic tools to reliably measure when prevalence is above or below a cut-off of 10% in school-aged children. Communities remaining above 10% require annual MDA, while communities below 10% can reduce MDA frequency as long as < 10% prevalence can be maintained. However, the lack of a reliable test has hindered the development of maintenance strategies. The test is also needed to track changes of prevalence > 10% to ensure that annual MDA is reducing overall prevalence.
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The Global Schistosomiasis Alliance Diagnostic Workstream has developed a communications piece listing all commercially available diagnostics for schistosomiasis
The Global Schistosomiasis Alliance Diagnostic Workstream has developed a communications piece listing all commercially available diagnostics for schistosomiasis
Schistosomiasis is a helminthic infection and one of the neglected tropical diseases (NTDs). It is caused by blood flukes of the genus Schistosoma. It is an important public health problem, particularly in poverty-stricken areas, especially those within the tropics and subtropics. It is estimated th...at at least 236 million people worldwide are infected, 90% of them in sub-Saharan Africa, and that this disease causes approximately 300,000 deaths annually. The clinical manifestations are varied and affect practically all organs. There are substantial differences in the clinical presentation, depending on the phase and clinical form of schistosomiasis in which it occurs. Schistosomiasis can remain undiagnosed for a long period of time, with secondary clinical lesion. Here, we review the clinical profile of schistosomiasis. This information may aid in the development of more efficacious treatments and improved disease prognosis.
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Infect Dis Poverty (2021) 10:15.
Real-time polymerase chain reaction (PCR) is a sensitive and specific method for diagnosing schistoso-
miasis. However, this method should be performed in a laboratory, usually located distant from the sample collection
site. Therefore, it is important to have fas...t sampling preservation methods, which allow simple transport prior to DNA
extraction and amplification. The aim of this study was to verify if blood samples applied to filter paper are suitable for
analysis of Schistosoma mansoni DNA by real-time PCR.
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Front. Public Health 9:622809
The control and elimination of schistosomiasis have over the last two decades involved several strategies, with the current strategy by the World Health Organization (WHO) focusing mainly on treatment with praziquantel during mass drug administration (MDA). However, th...e disease context is complex with an interplay of social, economic, political, and cultural factors that may affect achieving the goals of the Neglected Tropical Disease (NTD) 2021-2030 Roadmap. There is a need to revisit the current top-down and reactive approach to schistosomiasis control among sub-Saharan African countries and advocate for a dynamic and diversified approach.
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Front. Immunol. 12:620657. doi: 10.3389/fimmu.2021.620657.
HIV-1 infection disproportionately affects women in sub-Saharan Africa, where areas of high HIV-1 prevalence and Schistosoma haematobium endemicity largely overlap. Female genital schistosomiasis (FGS), caused most frequently by S. haemato...bium egg deposition in the genital tract, has been associated with prevalent HIV-1 infection in cross-sectional studies. The presence of S. haematobium eggs in genital tissue is also associated with vascularization and the accumulation of CD4+ lymphocytes and macrophages, making the granuloma-associated environment a potential contributor to HIV-1 vulnerability. In addition to modulation of the local cervicovaginal environment, FGS has also been associated with a higher frequency of systemic CD4 T-cells expressing the chemokine receptor CCR5. Tissue-entrapped eggs are also associated with clinically visible FGS-associated manifestations in the cervicovaginal mucosa. FGS lesions may breach the intact cervicovaginal immune barrier and are hypothesized to provide an entry point for HIV-1 infection. However, the underlying mechanism for potential HIV-1 vulnerability in FGS has not been fully characterized and requires further investigation.
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Cogent Medicine, 7:1, 1794272,
PUBLIC HEALTH & PRIMARY CARE | RESEARCH ARTICLE
Edutainment and infographics for
schistosomiasis health education in Ndumo area,
Kwazulu-Natal, South Africa
Tafadzwa Mindu1*, Muhubiri Kabuyaya1 and Moses J. Chimbari1
Educational interventions targeting communiti...es which are at risk of contracting
schistosomiasis infection may empower them to develop capacity to minimize the
spread of the disease. We compared the effectiveness of health education inter-
ventions for schistosomiasis knowledge uptake among school-going children in
Ndumo area, KwaZulu-Natal using a quasi-experimental trial.
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Lancet Infect Dis 2020 Published Online May 5, 2020 https://doi.org/10.1016/ S1473-3099(20)30254-1
Schweizerische Fachgesellschaft für Tropen‐ und Reisemedizin FMH
Acta Trop. 2020 Mar:203:105289. doi: 10.1016/j.actatropica.2019.105289
The role of malacological surveys to identify potential transmission sites for schistosomiasis control in this era of
mass drug administration have received little attention. In that context, the present study was conducted to
...
determine the abundance, identity and disease transmission potential of intermediate host snails for intestinal
schistosomiasis on Ijinga Island, north-western Tanzania.
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Infectious Diseases of Poverty (2020) 9:74
To detect acute schistosomiasis, low-intensity infections, or to verify the success of treatment with
praziquantel, highly sensitive test methods are required. The aim of this study was therefore to demonstrate the
performance of Schistosoma mansoni spec...ific DNA detection in serum and urine using real-time polymerase chain
reaction (PCR) in an endemic area before and after treatment.
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PLoS Negl TropDis14(10): e0008837. https://doi.org/ 10.1371/journal.pntd.0008837.
We conducted alandscape analysis on parasitic and vector-borne disease elimination approaches with the aim toidentify evidence-based strategies, core components and key concepts for achieving and sustaining schistosom...iasis control and for progressing elimination efforts towards interruption oftransmission insubSaharan Africa.
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Learning pack. This pack presents a summary of exploratory qualitative research methods and
findings from frontline health implementers and communities conducted by the
research team in Ghana.
Schistosoma haematobium is a parasitic digenetic trematode responsible for schistosomiasis (also known as bilharzia). The disease is caused by penetration of the skin by the parasite, spread by intermediate host molluscs in stagnant waters, and can be treated by administration of praziquantel. Schis...tosomiasis is considered to be an important but neglected tropical disease.
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Trop. Med. Infect. Dis. 2019, 4, 40; Schistosomiasis is an infectious disease caused by helminth parasites of the genus Schistosoma. Worldwide, an estimated 250 million people are infected with these parasites with the majority of cases occurring in sub-Saharan Africa. Within Asia, three species of ...Schistosoma cause disease. Schistosoma japonicum is the most prevalent, followed by S. mekongi and S. malayensis. All three species are zoonotic, which causes concern for their control, as successful elimination not only requires management of the human definitive host, but also the animal reservoir hosts. With regard to Asian schistosomiasis, most of the published research has focused on S. japonicum with comparatively little attention paid to S. mekongi and even less focus on S. malayensis. In this review, we examine the three Asian schistosomes and their current status in their endemic countries: Cambodia, Lao People’s Democratic Republic, Myanmar, and Thailand (S. mekongi); Malaysia (S. malayensis); and Indonesia, People’s Republic of China, and the Philippines (S. japonicum). Prospects for control that could potentially lead to elimination are highlighted as these can inform researchers and disease control managers in other schistosomiasis-endemic areas, particularly in Africa and the Americas.
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he materials in this toolkit were developed as part of the Zanzibar Elimination of Schistosomiasis (ZEST) study. They were designed to help teachers work with students to reduce schistosomiasis in their communities and have been amended so they can be used in different communities across Africa. All... materials are in Word and Power Point so that images and wording can be changed to suit the social context of the local community. We encourage you to tailor the materials to your communities.
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BMC Infectious Diseases (2019) 19:832
Intestinal schistosomiasis is highly endemic in Tanzania and mass drug administration (MDA) using
praziquantel is the mainstay of the control program. However, the MDA program covers only school aged children
and does not include neither adult individuals nor... other public health measures. The Ijinga schistosomiasis project
examines the impact of an intensified treatment protocol with praziquantel MDA in combination with additional
public health interventions. It aims to investigate the feasibility of eliminating intestinal schistosomiasis in a highly
endemic African setting using an integrated community-based approach.
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