{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T18:26:07Z","timestamp":1791656767462,"version":"4.3.4"},"reference-count":63,"publisher":"Public Library of Science (PLoS)","issue":"2","license":[{"start":{"date-parts":[[2025,2,28]],"date-time":"2025-02-28T00:00:00Z","timestamp":1740700800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"World Vision"},{"DOI":"10.13039\/100000066","name":"National Institute of Environmental Health Sciences","doi-asserted-by":"publisher","award":["T32ES007018"],"award-info":[{"award-number":["T32ES007018"]}],"id":[{"id":"10.13039\/100000066","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["www.ploswater.org"],"crossmark-restriction":false},"short-container-title":["PLOS Water"],"abstract":"<jats:p>Water, sanitation, hygiene, waste management, and other environmental health services are critical for safe health systems, but global access is lacking. Adequate financing is a key barrier, and understanding resource allocation can help identify solutions in resource-limited contexts. We conducted a qualitative case examining resource allocation in rural Niger. Our objectives were to understand resource allocation processes, key actors and their roles, and contextual factors that influenced resource allocation. We interviewed thirty-three healthcare workers, community leaders, and government officials. We found that resource allocation followed formal and informal processes. Formal processes encompassed annual budgets and monthly supplies through government channels, while informal processes depended on healthcare workers\u2019 out-of-pocket expenses, unpaid labor, in-kind community support, healthcare facility revenue, and contributions from non-governmental and United Nations agencies, and the diaspora. Informal resource allocation was critical to fill the gap when formal processes were slow or insufficient. Resource allocation was highly decentralized with minimal influence of national policies and legal frameworks at the local level. Key contextual factors influencing resource allocation included politicization of budgets at the commune level, sometimes leading to inefficiency or inequity. We observed that healthcare facility actors who were most knowledgeable of needs often held the least decision-making power. We concluded that informal processes were complementary to formal processes, not conflicting. In contexts where government funding is severely limited, informal mechanisms may be the only viable short-term option to ensure the availability of services, demonstrating greater flexibility and adaptability. However, ultimately informal processes are an interim solution that should be explored to ensure service delivery without undermining long-term government systems strengthening. We recommend that funders commit to long-term initiatives promoting local government democratic decision-making, account for local actors\u2019 capacities and incentives, and acknowledge dynamic formal and informal resource allocations to optimize investments and trade-offs.<\/jats:p>","DOI":"10.1371\/journal.pwat.0000330","type":"journal-article","created":{"date-parts":[[2025,2,28]],"date-time":"2025-02-28T18:26:18Z","timestamp":1740767178000},"page":"e0000330","update-policy":"https:\/\/doi.org\/10.1371\/journal.pwat.corrections_policy","source":"Crossref","is-referenced-by-count":2,"title":["Resource allocation for environmental health services in healthcare facilities: A qualitative case study from Niger"],"prefix":"10.1371","volume":"4","author":[{"ORCID":"https:\/\/orcid.org\/0009-0007-8814-7582","authenticated-orcid":true,"given":"Silvia","family":"Landa","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0000-8853-0863","authenticated-orcid":true,"given":"Elisha Y.","family":"Sanoussi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ezechiel","family":"Mahamane","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kairou Oudou Bilo","family":"Mahamadou","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Aaron","family":"Salzberg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2129-7662","authenticated-orcid":true,"given":"Darcy M.","family":"Anderson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"340","published-online":{"date-parts":[[2025,2,28]]},"reference":[{"key":"pwat.0000330.ref001","article-title":"With a new United Nations resolution on water, sanitation, hygiene, electricity, and waste in healthcare facilities, it\u2019s time for a logical framing and consistent vocabulary","author":"DM Anderson","year":"In press","journal-title":"PLOS Sustain Trans"},{"issue":"S6","key":"pwat.0000330.ref002","doi-asserted-by":"crossref","first-page":"P302","DOI":"10.1186\/1753-6561-5-S6-P302","article-title":"New approaches to enhance environmental cleaning in an acute tertiary hospital","volume":"5","author":"TK Yuen","year":"2011","journal-title":"BMC Proc"},{"issue":"1","key":"pwat.0000330.ref003","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1177\/193758671300701S08","article-title":"The role of water in the transmission of healthcare-associated infections: opportunities for intervention through the environment","volume":"7","author":"ME Denham","year":"2013","journal-title":"HERD"},{"issue":"8","key":"pwat.0000330.ref004","doi-asserted-by":"crossref","first-page":"1199","DOI":"10.1016\/j.ijheh.2017.07.011","article-title":"A systematic review of nosocomial waterborne infections in neonates and mothers","volume":"220","author":"M Moffa","year":"2017","journal-title":"Int J Hyg Environ Health"},{"issue":"5","key":"pwat.0000330.ref005","first-page":"CD013326","article-title":"Hand hygiene for the prevention of infections in neonates","author":"BP Kuti","year":"2019","journal-title":"Cochrane Database Syst Rev"},{"issue":"3","key":"pwat.0000330.ref006","doi-asserted-by":"crossref","first-page":"e000648","DOI":"10.1136\/bmjgh-2017-000648","article-title":"What is the impact of water sanitation and hygiene in healthcare facilities on care seeking behaviour and patient satisfaction? 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a systematic review of evidence from quantitative studies","volume":"96","author":"A Dwicaksono","year":"2018","journal-title":"Milbank Q"},{"issue":"1","key":"pwat.0000330.ref039","doi-asserted-by":"crossref","DOI":"10.2166\/h2oj.2022.022","article-title":"Galvanising and fostering sub-national government leadership for area-wide sanitation programming","volume":"5","author":"M Coultas","year":"2022","journal-title":"H2Open J"},{"issue":"3","key":"pwat.0000330.ref040","doi-asserted-by":"crossref","first-page":"258","DOI":"10.2166\/washdev.2022.183","article-title":"Pathways for securing government commitment for activities of collaborative approaches","volume":"12","author":"K Pugel","year":"2022","journal-title":"J Water Sanit Hyg Dev"},{"key":"pwat.0000330.ref041","author":"WHO\/UNICEF","year":"2024"},{"key":"pwat.0000330.ref042","volume-title":"Global framework for action 2024\u20132030: universal water, sanitation, hygiene, waste and electricity services in all health care facilities to achieve quality health care services","author":"WHO\/UNICEF","year":"2024"},{"key":"pwat.0000330.ref043","volume-title":"\u2018Politicking for the poor\u2019: appendix 3 understanding \u201cpolitical will\u201d [Internet]","author":"Department for International Development","year":"2004"},{"issue":"4","key":"pwat.0000330.ref044","doi-asserted-by":"crossref","first-page":"653","DOI":"10.1111\/j.1747-1346.2010.00253.x","article-title":"Defining political will","volume":"38","author":"LA Post","year":"2010","journal-title":"Polit Policy"},{"key":"pwat.0000330.ref045","article-title":"Conundrum of bureaucratic processes and healthcare service delivery in government hospitals in Nigeria","author":"OL Kuye","year":"2020","journal-title":"JHASS"},{"issue":"3","key":"pwat.0000330.ref046","doi-asserted-by":"crossref","first-page":"307","DOI":"10.1080\/14719037.2013.806577","article-title":"Street-level policy entrepreneurship","volume":"17","author":"G Arnold","year":"2015","journal-title":"Public Manag Rev"},{"issue":"2","key":"pwat.0000330.ref047","doi-asserted-by":"crossref","first-page":"155","DOI":"10.1177\/0269094220913864","article-title":"Beyond formal policies: informal functions of mayor\u2019s offices to promote entrepreneurship","volume":"35","author":"Y Motoyama","year":"2020","journal-title":"Local Economy"},{"key":"pwat.0000330.ref048","article-title":"Water, sanitationand hygiene inhealthcare facilities:investment thatwill save lives","author":"WaterAid","year":"2023","journal-title":"WaterAid"},{"issue":"1","key":"pwat.0000330.ref049","doi-asserted-by":"crossref","first-page":"340","DOI":"10.1186\/s12913-017-2207-2","article-title":"Sustainability in health care by allocating resources effectively (SHARE) 3: examining how resource allocation decisions are made, implemented and evaluated in a local healthcare setting","volume":"17","author":"C Harris","year":"2017","journal-title":"BMC Health Serv Res"},{"issue":"1","key":"pwat.0000330.ref050","doi-asserted-by":"crossref","first-page":"151","DOI":"10.1186\/s12913-018-2932-1","article-title":"Sustainability in Health care by Allocating Resources Effectively (SHARE) 8: developing, implementing and evaluating an evidence dissemination service in a local healthcare setting","volume":"18","author":"C Harris","year":"2018","journal-title":"BMC Health Serv Res"},{"issue":"1","key":"pwat.0000330.ref051","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1111\/0033-3352.00003","article-title":"Major players: bureaucracies in American government","volume":"61","author":"H Kaufman","year":"2001","journal-title":"Public Adm Rev"},{"key":"pwat.0000330.ref052","unstructured":"Rissler GE. Advocate or traditional bureaucrat: understanding the role of ESL supervisors in shaping local education policy toward Immigrant Communities [Doctoral dissertation]. 2017."},{"issue":"1","key":"pwat.0000330.ref053","doi-asserted-by":"crossref","first-page":"87","DOI":"10.1186\/s41182-021-00380-6","article-title":"How West African countries prioritize health","volume":"49","author":"YA Adebisi","year":"2021","journal-title":"Trop Med Health"},{"key":"pwat.0000330.ref054","unstructured":"Unable to find information for 8377868."},{"issue":"12","key":"pwat.0000330.ref055","doi-asserted-by":"crossref","first-page":"1488","DOI":"10.1016\/j.ajic.2021.08.012","article-title":"How clinicians manage routinely low supplies of personal protective equipment","volume":"49","author":"LJ Ridge","year":"2021","journal-title":"Am J Infect Control"},{"issue":"2","key":"pwat.0000330.ref056","doi-asserted-by":"crossref","first-page":"205","DOI":"10.1093\/heapol\/czv042","article-title":"Valuing the work of unpaid community health workers and exploring the incentives to volunteering in rural Africa","volume":"31","author":"inSCALE Study Group","year":"2016","journal-title":"Health Policy Plan"},{"key":"pwat.0000330.ref057","doi-asserted-by":"crossref","first-page":"113792","DOI":"10.1016\/j.ijheh.2021.113792","article-title":"Successes, challenges, and support for men versus women implementers in water, sanitation, and hygiene programs: A qualitative study in rural Nepal","volume":"236","author":"DM Anderson","year":"2021","journal-title":"Int J Hyg Environ Health"},{"key":"pwat.0000330.ref058","doi-asserted-by":"crossref","first-page":"437","DOI":"10.1016\/j.jclepro.2017.04.016","article-title":"Resource mobilization for community-managed rural water systems: Evidence from Ghana, Kenya, and Zambia","volume":"156","author":"NL Behnke","year":"2017","journal-title":"J Clean Prod"},{"key":"pwat.0000330.ref059","doi-asserted-by":"crossref","first-page":"148252","DOI":"10.1016\/j.scitotenv.2021.148252","article-title":"COVID-19 pandemic in Africa: Is it time for water, sanitation and hygiene to climb up the ladder of global priorities?","volume":"791","author":"P Marcos-Garcia","year":"2021","journal-title":"Sci Total Environ"},{"issue":"1","key":"pwat.0000330.ref060","doi-asserted-by":"crossref","first-page":"2009165","DOI":"10.1080\/16549716.2021.2009165","article-title":"Diaspora engagement: a scoping review of diaspora involvement with strengthening health systems of their origin country","volume":"15","author":"EN Taslakian","year":"2022","journal-title":"Glob Health Action"},{"issue":"12","key":"pwat.0000330.ref061","doi-asserted-by":"crossref","first-page":"1584","DOI":"10.3390\/ijerph14121584","article-title":"Small water enterprise in rural Rwanda: business development and year-one performance evaluation of nine water kiosks at health care facilities","volume":"14","author":"A Huttinger","year":"2017","journal-title":"Int J Environ Res Public Health"},{"key":"pwat.0000330.ref062","article-title":"Environmental infrastructure maintenance bottlenecks in healthcarefacilities and coping strategies among healthcare workers in Niger","author":"LK Tantum","year":"2024","journal-title":"SAGE Environmental Health Insights"},{"key":"pwat.0000330.ref063","volume-title":"WASH in health care facilities: Practical steps to achieve universal access to quality care","author":"WHO\/UNICEF","year":"2019"}],"container-title":["PLOS Water"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pwat.0000330","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,2,28]],"date-time":"2025-02-28T18:26:46Z","timestamp":1740767206000},"score":1,"resource":{"primary":{"URL":"https:\/\/dx.plos.org\/10.1371\/journal.pwat.0000330"}},"subtitle":[],"editor":[{"given":"Silvia","family":"Monteiro","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]}],"short-title":[],"issued":{"date-parts":[[2025,2,28]]},"references-count":63,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2025,2,28]]}},"URL":"https:\/\/doi.org\/10.1371\/journal.pwat.0000330","relation":{},"ISSN":["2767-3219"],"issn-type":[{"value":"2767-3219","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,2,28]]}}}