We performed an empirical evaluation of the relationship between deworming in pre-school age children (ages 1-4 years) within the previous 6 months, as proxy-reported by the mother, and health outcomes of weight, height, and hemoglobin. (2006) Preventive chemotherapy in human helminthiasis, Coordinated use of anthelminthic drugs in control interventions: a manual for health professionals and programme managers, Pullan RL, Smith JL, Jasrasaria R, Brooker SJ. I work for a private sector company WHO coordinates shipment of these medicines to countries requesting them. number of worms in each child. 5 7 Entertainment New Delhi: Periodic deworming during childhood days is important. vitamin A receipt, use of malaria net, and breastfeeding), and country-specific analyses (see Appendix). Given the amount of investment of public money in deworming programmes, it is important to be clear whether mass or targeted drug administration is able to contribute to health and development in a substantive way, and that it achieves what the proponents claim in terms of . Deworming important for children's health, ha | EurekAlert! Regular deworming contributes to good health and nutrition for children of school age, which in turn leads to increased enrolment and attendance, reduced class repetition, and increased educational attainment. WHO currently estimates that global deworming has increased substantially to achieve a coverage of 51% of pre-school age children worldwide, although these estimates are only from countries that report this data [25]. In the complex world of education policy, some experts comment that school-based deworming may be the closest we have come to finding a "magic bullet." School Health and Nutrition | Save the Children Entrepreneurship & Private Sector Development. 0000010592 00000 n Providing medicines to populations at risk reduces the intensity of intestinal helminth infections, said Dr Francesco Branca, Director of WHOs Department of Nutrition for Health and Development. DtW is now a program of the nonprofit organization Evidence Action, which builds long-term partnerships and provides technical assistance to help governments launch, monitor, and sustain school-based deworming programs. There was a range of effect sizes in the country-specific analyses (Figure A1-3). The treatment is simple, safe, effective and free We addressed several limitations of past approaches in terms of generalizability, and draw upon a decade of deworming to measure population-level relationships between deworming and health. educational attainment. These findings were robust across multiple statistical models, and we did not find consistently measurable associations with data from non-endemic settings. How deworming promotes learning and health. WHO Guideline: Preventive chemotherapy to control soil-transmitted helminth infections in at-risk population groups, Fact sheet: Soil-transmitted helminth infections, Neglected tropical diseases: GSK reaffirms longstanding commitment and expands its donation programme to three diseases, Schistosomiasis and soil-transmitted helminthiases: treating millions of people, despite the pandemic, 2019 Nobel laureate Michael Kremer emphasizes WASH and deworming benefits, Donors making a difference: Eliminating neglected tropical diseases and other outbreaks, From animal use to a mainstay treatment against intestinal worms in humans, Independent Oversight and Advisory Committee, WHO recommends large-scale deworming to improve childrens health and nutrition. Our analysis focused on pre-school age children, but future work should also examine school-age children and the broader community that may play a critical role in ongoing transmission [21, 23]. This study relied on published data and did not require human subject research approval. Save for Later Share Like. [1] http://www.who.int/intestinal_worms/more/en/. The analytic code is available on request to the corresponding author. You must have JavaScript enabled to use this form. Various programs and events were also organised on the occasion showcasing the importance of worm free lives and maintaining sanitation. Control measures through improved sanitation, hygiene and de-worming are needed to prevent infection and re . All rights reserved. Implications of the Review. To support the growth of the program, Innovations for Poverty Action incubated DtW from 2010-2014. Mean no of worms. We found that children who received deworming were slightly older, wealthier, more likely to live in urban areas, had mothers that were more educated, had stronger health-seeking behavior, and greater access to toilets (Table 2). We also examined the relationship between deworming and health outcomes in the sub-group of disease state (e.g. albendazole vs mebendazole), multiple treatments, and drugs for other parasitic worms (e.g. the contents by NLM or the National Institutes of Health. In addition, it is estimated that from 40-70% of these children are enrolled at school. 0000005283 00000 n The discrepancy between our study findings and those of previous studies may further be explained by effect heterogeneity that is driven by spatial distribution of disease, differences between worm species, and an important non-linear relationship between disease burden (based on community infection intensity) and health outcomes [17, 18]. Children need these deworming medicines to grow Center for Effective Global Action, University of California, Berkeley, Creative Commons Attribution 4.0 International License. Deworming Day will be followed by a Mop-Up Day (MUD) on 13th February 2015 with the intent of deworming children who missed the dose on February 10th. This is possible because of the . Deworming was associated with more reports of recent cough and fever as outcomes (see Appendix), which suggests some unexplained relationship, but argues against selection bias of better health in the population that received deworming. We included pre-specified person-level covariates in the analysis to address potential confounding relations, including childs age and gender, mothers age (<30 years or older based on prior DHS analysis on health-seeking behavior [29]) and education (defined as no education, some primary school, and completion of primary school or higher education), wealth quintile (a composite measure for each persons household, relative based on country standard), place of residence (urban or rural, relative based on countrys definition), and binary variables indicating access to improved water, sanitation (based on toilet facility using the Joint Monitoring Programme definitions) [30], and healthcare-seeking behaviors using receipt of third dose of diphtheria-tetanus-pertussis vaccine as an indirect proxy (Appendix). 0000015257 00000 n Worms can cause anemia, stunting, lethargy and other problems that derail children's development. Study countries were selected based upon availability of DHS data, and are currently recommended by WHO to receive preventive chemotherapy. We used nationally representative cross-sectional data from 45 countries using the Demographic and Health Surveys (DHS) during the period 20052016. 0000001838 00000 n "We oftentimes think about classroom inputs," said King. We used all available DHS surveys that included data on deworming exposure, health outcomes, and relevant covariates from endemic countries based on WHO classification (Appendix). Contributions to IPA are tax-deductible to the extent permitted by law. These new guidelines have been issued at a time when countries where intestinal worms are endemic are accelerating control programmes with the help of partners to both treat people who are infected and those at risk of infection.. Open J Trop Med 3(1): 001-006. While deworming has proven to be one of the most cost-effective interventions to get children into school, promising new research suggests that deworming children can also result in many long-term benefits, including higher wages, healthier individuals and stronger communities. Despite the methodological differences among the three national surveys, the findings frequently infer . In sub-Saharan Africa, we found that children who received deworming treatment were less likely to be stunted (1.1 percentage point decline from mean of 36%; 95% CI [-2.1, -0.2%]; p = 0.01) and less likely to have anemia (1.8 percentage point decline from mean of 58%; 95% CI [-2.8, -0.7%]; p<0.001), but we did not detect consistent associations between deworming and weight. 0000005143 00000 n On World Humanitarian Day, we turn our focus to the Tigray region of northern Ethiopia, where children have endured devastating consequences of conflict and the upheaval caused by COVID-19. Uncertainty about the benefits of deworming is compounded by clustering of existing randomized trials in a few regions, which may limit generalizability to different contexts. Similarly, while the main exposure variable for deworming of a child was proxy-reported by his or her mother and potentially subject to reporting bias (e.g. Notably, we did not find any relationships between deworming and better health outcomes using data from non-endemic settings (country list in Appendix), which increases our confidence in our findings since we would not expect deworming benefits in these regions (Table A8). We excluded countries with low-burden STH (defined as countries in which <10% children lived in areas where STH was endemic and WHO recommends mass deworming) or those missing data on deworming, health outcomes, or relevant covariates (see Appendix). The international effort in favour of Education for All provides a unique opportunity to fully institutionalize such activities and free all children from worms.". (2017), The benefits of mass deworming on health outcomes: new evidence synthesis, the debate persists, Lo NC, Addiss DG, Hotez PJ, King CH, Stothard JR, Evans DS, et al. PDF School Deworming - World Health Organization (WHO) Open source's future, and cancer drugs shortages - MIT Technology Review 0000007069 00000 n Worm infections can cause various health problems, including anemia, abdominal distention (swelling) or. Among pre-school age children, we detected a robust and consistent association between deworming and reduced stunting, with additional evidence for reduced anemia in sub-Saharan Africa. %PDF-1.3 % 0000010614 00000 n This association should be conceptualized as the diluted population-level impact. Available from: World Health Organization PCT databank: Soil-transmitted helminthiases Who we have to work on are the aid donors, who know the importance of deworming but often have seen this intervention as exotic, so that their interest has been inconsistent. But the treatment is simple and a phenomenal return on investment, says Michael Kremer, co-founder and President ofDeworm the World, that has achieved major success in tackling this sickness, which affects one person in four, globally, including over 400 million children. For each, we computed the deworming coverage in pre-school age children. We repeated the main analysis restricting to only one child per household (i.e. level of economic development and national STH prevalence at time of survey). To replicate the program's success, three states in India have now embarked on piloting a similar approach to reach 35 million school children. These findings were robust across the majority of alternative statistical models and mostly consistent in overall negative-exposure controls (Table A4, A5). Furthermore, low STH prevalence in some clinical trials, heterogeneity in helminth species and their respective health effects, and the short time period of most trials may obscure potential health benefits. This global empirical analysis provides evidence to support the deworming of pre-school age children. PDF Conducting a school deworming day - World Health Organization Our results find substantial country heterogeneity in the associations between deworming and health outcomes, which further supports the complexities in measuring the impact of deworming and the importance of evaluating real world deworming across diverse settings and epidemiologic conditions. Hb```f``)a`e`6bg@ ~6 x|UyI6%, ((H049\U- @6Dh'Q$8$0}`=`9h dE.RV0O[sq. Importantly, while a mothers recall of deworming may be imperfect, any recall bias is unlikely to be unique to the dewormed group so this would bias our overall study findings towards no association and would not be a threat to the validity of our findings. These worms are transmitted by eggs Now that the world has agreed standards for deworming at-risk populations, we are in a better position to reach this target., Communications Officer Christopher Strebel. (2015), Unprogrammed deworming in the Kibera slum, Nairobi: implications for control of soil-transmitted helminthiases, http://dhsprogram.com/data/available-datasets.cfm, http://www.wssinfo.org/definitions-methods/watsan-categories/, Underweight, sub-Saharan Africa N = 165,100. 0000013763 00000 n Primary Care and Population Health, Stanford University, Stanford, CA, United States of America, 7 Challenges Collaborations Commitment. The World Health Organization (WHO) Department of Neglected Tropical Diseases also made a statement that it is "fully supportive of a renewed effort to make school-based deworming a standard part of school health programmes. Says the WHO, Currently only 35% and 8% of school age children in need receive regular preventive treatment for soil-transmitted helminthiasis and schistosomiasis, respectively. The strategy is intended to reduce the number of children with moderate and high-intensity infection, which is associated with adverse health outcomes [5]. How Effective Is School-Based Deworming for the Community-Wide - PLOS 0000001140 00000 n 0000005213 00000 n forms for a deworming campaign to 40 schools, two madrasas and one home school when the bus was attacked by anti-government people. However, there was an association between deworming and lower risk of being underweight in children who were already underweight. The World Bank hosted a special panel on Rethinking Deworming this month, featuring guest speaker Michael Kremer, co-Founder of Deworm the World and Gates Professor of Economics at Harvard, who presented the new research findings of a study in Kenya. The in-depths interviews revealed poor water access and hesitance from caregivers as perceived challenges to the success of the deworming program. Combination Deworming (Mass Drug Administration Targeting Both PMID: 29143641 PMCID: PMC5688423 DOI: 10.1186/s12889-017-4747- Abstract . We discuss the . appropriate dosage of medicine. Improving basic hygiene, sanitation, health education and providing access to safe drinking-water are also keys to resolving the health and nutritional problems caused by intestinal worms, says Dr Francesco Branca, Director of WHOs Department of Nutrition for Health and Development. Over 96 million children received deworming treatment in the 2014-2015 school year. Deworming is not the only solution, however. Croke K, Hicks JH, Hsu E, Kremer M, Miguel E. (2016) Does Mass Deworming Affect Child Nutrition? This strategy of regular deworming (also known as preventive chemotherapy) with albendazole or mebendazole has been the main STH control strategy recommended by the World Health Organization (WHO) for over a decade [5]. The large-scale empiric treatment of children for soil-transmitted helminthiasis (STH), commonly known as deworming, has become controversial [14]. We used robust standard errors clustered by country and survey. and transmitted securely. Andy Wright, Director of Disease Programs at GlaxoSmithKline, explained that GSK takes this role seriously, with current donations of some 400 million albendazole deworming tablets to theWorld Health Organizationeach year to support deworming. Division of Infectious Diseases and Geographic Medicine, Stanford University School of Medicine, Stanford, CA, United States of America, 3 (2016), Assessment of global guidelines for preventive chemotherapy against schistosomiasis and soil-transmitted helminthiasis: a cost-effectiveness modelling study, Truscott JE, Hollingsworth TD, Brooker SJ, Anderson RM. Save the Children's School Health and Nutrition (SHN) program is a cost-effective strategy to address a number of the health problems facing school-age children, through health education and health services such as deworming and micronutrient supplementation and healthy environment. Overall, the WHO estimate corresponds well with our estimate that 43% of pre-school age children had received deworming, which lends validity to the proxy-reported deworming exposure. praziquantel for Schistosoma spp). We also included year fixed effects that control for common time effects across all surveys. "WHO aims to eliminate the harm caused by worm infections in children by 2020 by regularly treating at least 75% of the estimated 873 million children in areas where prevalence is high, says Dr Antonio Montresor, who heads WHOs global deworming programme. Before School-Based Deworming | IPA - Poverty Action National Deworming Day Information - Kids Portal For Parents Watch the full event webcast and related presentations online. underweight children only). A home turned into a school helps Rayan return to learning. By 2010, only 1/3 of children requiring treatment were receiving it. Deworming is the process of expelling intestinal worms or parasitic worms from the body by administering an anthelmintic medicine/drug. How deworming promotes learning and health | Blog | Global Partnership 2. In response to the evidence, school-based deworming campaigns have been scaled-up in Ethiopia, India, and Kenya, reaching over 191 million children to date.2. February 20, 2016. They are a major public health problem because the worms disrupt peoples ability to absorb nutrients, impeding the growth and physical development of millions of children. 0000004143 00000 n Why is Deworming Important? Our programs are active in 30 countries in Africa, Asia . At a presentation by Professor Kremer, in Washington recently, Elizabeth King, Director of Education of theWorld Bank, stressed how critical it is for both the health and education sectors to worktogetherto deliver basic health services like deworming tablets in schools. Other. In all models we also used survey fixed effects, implemented as a set of indicator variables that control for all invariant differences between surveys (e.g. The program in Kenya targeted school children in areas of high infection, using advanced geomapping techniques developed by the www.ThisWormyWorld.org project.
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