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      Community engagement and population coverage in mass anti-malarial administrations: a systematic literature review

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          Abstract

          Background

          Mass anti-malarial administration has been proposed as a key component of the malaria elimination strategy in South East Asia. The success of this approach depends on the local malaria epidemiology, nature of the anti-malarial regimen and population coverage. Community engagement is used to promote population coverage but little research has systematically analysed its impact. This systematic review examines population coverage and community engagement in programmes of mass anti-malarial drug administration.

          Methods

          This review builds on a previous review that identified 3049 articles describing mass anti-malarial administrations published between 1913 and 2011. Further search and application of a set of criteria conducted in the current review resulted in 51 articles that were retained for analysis. These 51 papers described the population coverage and/or community engagement in mass anti-malarial administrations. Population coverage was quantitatively assessed and a thematic analysis was conducted on the community engagement activities.

          Results

          The studies were conducted in 26 countries: in diverse healthcare and social contexts where various anti-malarial regimens under varied study designs were administered. Twenty-eight articles reported only population coverage; 12 described only community engagement activities; and 11 community engagement and population coverage. Average population coverage was 83% but methods of calculating coverage were frequently unclear or inconsistent. Community engagement activities included providing health education and incentives, using community structures (e.g. existing hierarchies or health infrastructure), mobilizing human resources, and collaborating with government at some level (e.g. ministries of health). Community engagement was often a process involving various activities throughout the duration of the intervention.

          Conclusion

          The mean population coverage was over 80% but incomplete reporting of calculation methods limits conclusions and comparisons between studies. Various community engagement activities and approaches were described, but many articles contained limited or no details. Other factors relevant to population coverage, such as the social, cultural and study context were scarcely reported. Further research is needed to understand the factors that influence population coverage and adherence in mass anti-malarial administrations and the role community engagement activities and approaches play in satisfactory participation.

          Electronic supplementary material

          The online version of this article (doi:10.1186/s12936-016-1593-y) contains supplementary material, which is available to authorized users.

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          Most cited references77

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          A molecular mechanism of artemisinin resistance in Plasmodium falciparum malaria

          Artemisinins are the corner stone of anti-malarial drugs 1 . Emergence and spread of resistance to them 2–4 raises risk of wiping out recent gains achieved in reducing world-wide malaria burden and threatens future malaria control and elimination on a global level. Genome wide association studies (GWAS) have revealed parasite genetic loci associated with artemisinin resistance 5–10 . However, there is no consensus on biochemical targets of artemisinin. Whether and how these targets interact with genes identified by GWAS, remains unknown. Here we provide biochemical and cellular evidence that artemisinins are potent inhibitors of Plasmodium falciparum phosphatidylinositol-3-kinase (PfPI3K), revealing an unexpected mechanism of action. In resistant clinical strains, increased PfPI3K was associated with the C580Y mutation in P. falciparum Kelch13 (PfKelch13), a primary marker of artemisinin resistance. Polyubiquitination of PfPI3K and its binding to PfKelch13 were reduced by PfKelch13 mutation, which limited proteolysis of PfPI3K and thus increased levels of the kinase as well as its lipid product phosphatidylinositol 3-phosphate (PI3P). We find PI3P levels to be predictive of artemisinin resistance in both clinical and engineered laboratory parasites as well as across non-isogenic strains. Elevated PI3P induced artemisinin resistance in absence of PfKelch13 mutations, but remained responsive to regulation by PfKelch13. Evidence is presented for PI3P-dependent signaling, where transgenic expression of an additional kinase confers resistance. Together these data present PI3P as the key mediator of artemisinin resistance and the sole PfPI3K as an important target for malaria elimination.
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            Grand Challenges in Global Health: Community Engagement in Research in Developing Countries

            The authors argue that there have been few systematic attempts to determine the effectiveness of community engagement in research.
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              Is Open Access

              Review of Mass Drug Administration for Malaria and Its Operational Challenges

              Mass drug administration (MDA) was a component of many malaria programs during the eradication era, but later was seldomly deployed due to concerns regarding efficacy and feasibility and fear of accelerating drug resistance. Recently, however, there has been renewed interest in the role of MDA as an elimination tool. Following a 2013 Cochrane Review that focused on the quantitative effects of malaria MDA, we have conducted a systematic, qualitative review of published, unpublished, and gray literature documenting past MDA experiences. We have also consulted with field experts, using their historical experience to provide an informed, contextual perspective on the role of MDA in malaria elimination. Substantial knowledge gaps remain and more research is necessary, particularly on optimal target population size, methods to improve coverage, and primaquine safety. Despite these gaps, MDA has been used successfully to control and eliminate Plasmodium falciparum and P. vivax malaria in the past, and should be considered as part of a comprehensive malaria elimination strategy in specific settings.
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                Author and article information

                Contributors
                Bipin@tropmedres.ac
                nicola.h.james@gmail.com
                Gretchen.Newby@ucsf.edu
                Lorenz@tropmedres.ac
                nickwdt@tropmedres.ac
                Nickd@tropmedres.ac
                arjen@tropmedres.ac
                christopher.pell@gmail.com
                Phaikyeong@tropmedres.ac
                Journal
                Malar J
                Malar. J
                Malaria Journal
                BioMed Central (London )
                1475-2875
                2 November 2016
                2 November 2016
                2016
                : 15
                : 523
                Affiliations
                [1 ]Mahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
                [2 ]The Malaria Elimination Initiative, Global Health Group, University of California, San Francisco, CA USA
                [3 ]The Ethox Centre, Nuffield Department of Population Health, University of Oxford, Oxford, UK
                [4 ]Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, Churchill Hospital, Oxford, UK
                [5 ]Centre for Social Science and Global Health, University of Amsterdam, Amsterdam, The Netherlands
                Author information
                http://orcid.org/0000-0001-8981-3910
                Article
                1593
                10.1186/s12936-016-1593-y
                5093999
                27806717
                806f850c-777d-4b7d-817e-3aa1c24399a2
                © The Author(s) 2016

                Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License ( http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver ( http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

                History
                : 6 September 2016
                : 28 October 2016
                Funding
                Funded by: Wellcome Trust (GB)
                Award ID: 101148/Z/13/Z
                Funded by: FundRef http://dx.doi.org/10.13039/100000865, Bill and Melinda Gates Foundation;
                Award ID: BMGF OPP1081420
                Funded by: FundRef http://dx.doi.org/10.13039/100004440, Wellcome Trust;
                Award ID: 106698/Z/14/Z
                Funded by: Wellcome Trust Engaging Science Grant
                Award ID: 105032/Z/14/Z
                Award Recipient :
                Categories
                Review
                Custom metadata
                © The Author(s) 2016

                Infectious disease & Microbiology
                malaria,mda,community,engagement,population coverage
                Infectious disease & Microbiology
                malaria, mda, community, engagement, population coverage

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