scholarly journals Evaluation of mass drug administration for schistosomiasis and soil-transmitted helminths in school-aged children in Bankass, Mali

Author(s):  
Moussa Sangare ◽  
Adama Berthe ◽  
Housseini Dolo ◽  
Abdoul Fatao Diabaté ◽  
Fatoumata dite Nènè Konipo ◽  
...  
2014 ◽  
Vol 369 (1645) ◽  
pp. 20130435 ◽  
Author(s):  
Roy Anderson ◽  
James Truscott ◽  
T. Deirdre Hollingsworth

A combination of methods, including mathematical model construction, demographic plus epidemiological data analysis and parameter estimation, are used to examine whether mass drug administration (MDA) alone can eliminate the transmission of soil-transmitted helminths (STHs). Numerical analyses suggest that in all but low transmission settings (as defined by the magnitude of the basic reproductive number, R 0 ), the treatment of pre-school-aged children (pre-SAC) and school-aged children (SAC) is unlikely to drive transmission to a level where the parasites cannot persist. High levels of coverage (defined as the fraction of an age group effectively treated) are required in pre-SAC, SAC and adults, if MDA is to drive the parasite below the breakpoint under which transmission is eliminated. Long-term solutions to controlling helminth infections lie in concomitantly improving the quality of the water supply, sanitation and hygiene (WASH). MDA, however, is a very cost-effective tool in long-term control given that most drugs are donated free by the pharmaceutical industry for poor regions of the world. WASH interventions, by lowering the basic reproductive number, can facilitate the ability of MDA to interrupt transmission.


BMJ Open ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. e049734
Author(s):  
Katya Galactionova ◽  
Maitreyi Sahu ◽  
Samuel Paul Gideon ◽  
Saravanakumar Puthupalayam Kaliappan ◽  
Chloe Morozoff ◽  
...  

ObjectiveTo present a costing study integrated within the DeWorm3 multi-country field trial of community-wide mass drug administration (cMDA) for elimination of soil-transmitted helminths.DesignTailored data collection instruments covering resource use, expenditure and operational details were developed for each site. These were populated alongside field activities by on-site staff. Data quality control and validation processes were established. Programmed routines were used to clean, standardise and analyse data to derive costs of cMDA and supportive activities.SettingField site and collaborating research institutions.Primary and secondary outcome measuresA strategy for costing interventions in parallel with field activities was discussed. Interim estimates of cMDA costs obtained with the strategy were presented for one of the trial sites.ResultsThe study demonstrated that it was both feasible and advantageous to collect data alongside field activities. Practical decisions on implementing the strategy and the trade-offs involved varied by site; trialists and local partners were key to tailoring data collection to the technical and operational realities in the field. The strategy capitalised on the established processes for routine financial reporting at sites, benefitted from high recall and gathered operational insight that facilitated interpretation of the estimates derived. The methodology produced granular costs that aligned with the literature and allowed exploration of relevant scenarios. In the first year of the trial, net of drugs, the incremental financial cost of extending deworming of school-aged children to the whole community in India site averaged US$1.14 (USD, 2018) per person per round. A hypothesised at-scale routine implementation scenario yielded a much lower estimate of US$0.11 per person treated per round.ConclusionsWe showed that costing interventions alongside field activities offers unique opportunities for collecting rich data to inform policy toward optimising health interventions and for facilitating transfer of economic evidence from the field to the programme.Trial registration numberNCT03014167; Pre-results.


2020 ◽  
Author(s):  
Legese Chelkeba ◽  
Tsegaye Melaku ◽  
Daniel Emana ◽  
Worku Jimma

Abstract Background: Comprehensive nationwide on prevalence, geographic distribution of different species and time trends of soil-transmitted helminths (STHs) are lacking. Therefore, the aim of this study was to provide a summary and location of the available data on STHs infection among preschool and school-age children in Ethiopia. Methods: The search were carried out in Medline via PubMed, Scopus, Science Direct, Web of Science and Google Scholar on data published between 1995 to Fabruary 2020 for studies describing rate of STHs infection among preschool and school-age in Ethiopian. We followed Patient, intervention, Comparsion and Outcome (PICO) approach to identify the studies. Endnote citation manager software version X9 for Windows was utilized to collect and organize search outcomes (into relevant and irrelevant studies) and for removal duplicate articles . We conducted meta-regression to understand the trends and the source of heterogeneity and pooled the prevalence using ‘metaprop’ command using STATA software version 14.Results: A total of 29,311 of the 61,690 children examined during the period under review were infected with one or more species of intestinal parasites yielding an overall prevalence of 48 % (95%CI: 43-53%). The overall pooled estimate of STHs was 33% (95% CI: 28-38%). The prevalence was 44% (95%CI : 31% - 58%) in SNNPR, 34%((95%CI : 28% - 41%) in Amhara region, 31% (95%CI : 19% - 43%) in Oromia region and 10% (95%CI : 7% - 12%) in Tigray region. Soil-transmitted helminths infection rate has been decreasing from 44% (95% CI:30-57%) pre-Mass Drug Administration (MDA) era (1997-2012) to 30% (95% CI:25-34%) post-MDA (2013-2020), although statistically not significant (p = 0.45). A. lumbricoides was the predominant species with a prevalence of 17%. Conclusion: Southern Nations Nationalities and Peoples Region , Amhara and Oromia regions carry the highest burden and are categorized to Moderate Risk Zones (MRZ) and therefore, requiring mass drug administration (MDA) once annually with Albendazole or Mebendazole. Prevalence of SHTs decreased after MDA compared to before MDA, but the decline was not statistically significant. A. lumbricoides was the predominant species of STHs among preschool and school-age children in Ethiopia.


2020 ◽  
Vol 14 (4) ◽  
pp. e0008258 ◽  
Author(s):  
Hugo Legge ◽  
Stella Kepha ◽  
Mateo Prochazka ◽  
Katherine Halliday ◽  
Rachel Pullan ◽  
...  

2016 ◽  
Vol 48 (S1) ◽  
pp. S16-S39 ◽  
Author(s):  
Julie Hastings

SummaryIn 2008 in Morogoro region, Tanzania, mass drug administration (MDA) to school-aged children to treat two neglected tropical diseases (NTDs) – urinary schistosomiasis and soil-transmitted helminths – was suspended by the Ministry of Health and Social Welfare after riots broke out in schools where drugs were being administered. This article discusses why this biomedical intervention was so vehemently rejected, including an eyewitness account. As the protest spread to the village where I was conducting fieldwork, villagers accused me of bringing medicine into the village with which to ‘poison’ the children and it was necessary for me to leave immediately under the protection of the Tanzanian police. The article examines the considerable differences between biomedical and local understandings of one of these diseases, urinary schistosomiasis. Such a disjuncture was fuelled further by the apparent rapidity of rolling out MDA and subsequent failures in communication between programme staff and local people. Rumours of child fatalities as well as children’s fainting episodes and illnesses following treatment brought about considerable conjecture both locally and nationally that the drugs had been either faulty, counterfeit, hitherto untested on humans or part of a covert sterilization campaign. The compelling arguments by advocates of MDA for the treatment of NTDs rest on the assumption that people suffering from these diseases will be willing to swallow the medicine. However, as this article documents, this is not always the case. For treatment of NTDs to be successful it is not enough for programmes to focus on economic and biomedical aspects of treatment, rolling out ‘one size fits all’ programmes in resource-poor settings. It is imperative to develop a biosocial approach: to consider the local social, biological, historical, economic and political contexts in which these programmes are taking place and in which the intended recipients of treatment live their lives. If this is not done, the world’s poor will continue to be neglected.


Parasitology ◽  
2009 ◽  
Vol 136 (13) ◽  
pp. 1781-1788 ◽  
Author(s):  
K. MASSA ◽  
A. OLSEN ◽  
A. SHESHE ◽  
R. NTAKAMULENGA ◽  
B. NDAWI ◽  
...  

SUMMARYControl programmes generally use a school-based strategy of mass drug administration to reduce morbidity of schistosomiasis and soil-transmitted helminthiasis (STH) in school-aged populations. The success of school-based programmes depends on treatment coverage. The community-directed treatment (ComDT) approach has been implemented in the control of onchocerciasis and lymphatic filariasis in Africa and improves treatment coverage. This study compared the treatment coverage between the ComDT approach and the school-based treatment approach, where non-enrolled school-aged children were invited for treatment, in the control of schistosomiasis and STH among enrolled and non-enrolled school-aged children. Coverage during the first treatment round among enrolled children was similar for the two approaches (ComDT: 80·3% versus school: 82·1%, P=0·072). However, for the non-enrolled children the ComDT approach achieved a significantly higher coverage than the school-based approach (80·0 versus 59·2%, P<0·001). Similar treatment coverage levels were attained at the second treatment round. Again, equal levels of treatment coverage were found between the two approaches for the enrolled school-aged children, while the ComDT approach achieved a significantly higher coverage in the non-enrolled children. The results of this study showed that the ComDT approach can obtain significantly higher treatment coverage among the non-enrolled school-aged children compared to the school-based treatment approach for the control of schistosomiasis and STH.


2016 ◽  
Vol 37 (1) ◽  
pp. 10
Author(s):  
Richard S Bradbury ◽  
Patricia M Graves

Soil transmitted helminths (STH), comprising Ascaris, Trichuris, Strongyloides and the hookworms remain a significant cause of morbidity amongst people in many parts of the world, including Australia. Other important helminth infections include lymphatic filariasis (LF), schistosomiasis and onchocerciasis. Preventive chemotherapy (mass drug administration [MDA]) campaigns are frequently conducted for these helminth infections in endemic areas, but the target population groups, duration of campaigns, cointerventions (e.g. vector control) criteria for inclusion, drugs used and doses of drugs differ.


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