Evidence map›Paper›PMID 38956479›Full record

ArticleBMC infectious diseases2024

Test-treat-track-test-treat (5T) approach for Schistosoma haematobium elimination on Pemba Island, Tanzania.

Lydia Trippler, Lyndsay Taylor, Mohammed Nassor Ali, Sarah Omar Najim, Khamis Seif Khamis, Jan Hattendorf, Saleh Juma, Shaali Makame Ame, Fatma Kabole, Said Mohammed Ali and 1 more

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Article in BMC infectious diseases, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

8 citing papers in PubMed.

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4 · The record

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5 · Who and what money

Authors and funding

11 authors.

Lydia TripplerSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Lyndsay TaylorSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Mohammed Nassor AliIvo de Carneri, Wawi, Chake Chake, Pemba, United Republic of Tanzania.
Sarah Omar NajimIvo de Carneri, Wawi, Chake Chake, Pemba, United Republic of Tanzania.
Khamis Seif KhamisIvo de Carneri, Wawi, Chake Chake, Pemba, United Republic of Tanzania.
Jan HattendorfSwiss Tropical and Public Health Institute, Allschwil, Switzerland.
Saleh JumaNeglected Diseases Program, Zanzibar Ministry of Health, Mkoroshoni, Pemba, United Republic of Tanzania.
Shaali Makame AmeNeglected Diseases Program, Zanzibar Ministry of Health, Lumumba, Unguja, United Republic of Tanzania.
Fatma KaboleNeglected Diseases Program, Zanzibar Ministry of Health, Lumumba, Unguja, United Republic of Tanzania.
Said Mohammed AliIvo de Carneri, Wawi, Chake Chake, Pemba, United Republic of Tanzania.
Stefanie KnoppSwiss Tropical and Public Health Institute, Allschwil, Switzerland. s.knopp@swisstph.ch.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAfter decades of praziquantel mass drug administration (MDA), several countries approach schistosomiasis elimination. Continuing MDA in largely uninfected populations no longer seems justified. Alternative interventions to maintain the gains or accelerate interruption of transmission are needed. We report results, strengths, and shortcomings of novel test-treat-track-test-treat (5T) interventions in low Schistosoma haematobium prevalence areas on Pemba, Tanzania.

methodsSchool- and household-based surveys were conducted in 2021 and 2022 to monitor the S. haematobium and microhematuria prevalence and assess the impact of interventions. In 2021, 5T interventions were implemented in 15 low-prevalence areas and included: (i) testing schoolchildren in primary and Islamic schools for microhematuria as a proxy for S. haematobium, (ii) treating positive children, (iii) tracking them to their households and to water bodies they frequented, (iv) testing individuals at households and water bodies, and (v) treating positive individuals. Additionally, test-and-treat interventions were implemented in the 22 health facilities of the study area.

resultsThe S. haematobium prevalence in the school-based survey in 15 low-prevalence implementation units was 0.5% (7/1560) in 2021 and 0.4% (6/1645) in 2022. In the household-based survey, 0.5% (14/2975) and 0.7% (19/2920) of participants were infected with S. haematobium in 2021 and 2022, respectively. The microhematuria prevalence, excluding trace results, in the school-based survey was 1.4% (21/1560) in 2021 and 1.5% (24/1645) in 2022. In the household-based survey, it was 3.3% (98/2975) in 2021 and 5.4% (159/2920) in 2022. During the 5T interventions, the microhaematuria prevalence was 3.8% (140/3700) and 5.8% (34/594) in children in primary and Islamic schools, respectively, 17.1% (44/258) in household members, and 16.7% (10/60) in people at water bodies. In health facilities, 19.8% (70/354) of patients tested microhematuria-positive.

conclusionsThe targeted 5T interventions maintained the very low S. haematobium prevalence and proved straightforward and feasible to identify and treat many of the few S. haematobium-infected individuals. Future research will show whether 5T interventions can maintain gains in the longer-term and expedite elimination.

trial registrationISRCTN, ISCRCTN91431493. Registered 11 February 2020, https://www.isrctn.com/ISRCTN91431493 .

Indexed as

AnthelminticsMass Drug AdministrationPraziquantelSchistosoma haematobiumSchistosomiasis haematobiaAdolescentAdultAnimalsChildDisease EradicationFamily CharacteristicsFemaleHematuriaHumansMalePrevalenceAnthelminticsPraziquantelCase findingEliminationInterruption of transmissionInterventionsMass drug administrationSchistosomiasisS. haematobiumSurveillance-responseTest-and-treatTest-treat-track-test-treatZanzibar

Identifiers

PMID38956479
PMCPMC11218394

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.