{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,7]],"date-time":"2026-10-07T03:33:42Z","timestamp":1791344022968,"version":"4.3.1"},"reference-count":33,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,7,13]],"date-time":"2025-07-13T00:00:00Z","timestamp":1752364800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"},{"start":{"date-parts":[[2025,7,13]],"date-time":"2025-07-13T00:00:00Z","timestamp":1752364800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Malar J"],"DOI":"10.1186\/s12936-025-05421-7","type":"journal-article","created":{"date-parts":[[2025,7,13]],"date-time":"2025-07-13T17:40:06Z","timestamp":1752428406000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Physical and insecticidal durability of PermaNet\u00ae 3.0 and Olyset\u00ae plus piperonyl butoxide-synergist insecticide-treated nets in Sierra Leone: results of durability monitoring from 2020 to 2023"],"prefix":"10.1186","volume":"24","author":[{"given":"Raymond Kiprop","family":"Sudoi","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Keith","family":"Esch","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Frederick","family":"Yamba","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Laurent","family":"Iyikirenga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Charlene","family":"Youssef","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Prince","family":"Nallo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isabel","family":"Swamidoss","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carla","family":"Mapp","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dennis","family":"Marke","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Samuel Juana","family":"Smith","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ronald","family":"Carshon-Marsh","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Musa","family":"Sillah-Kanu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dave","family":"Schnabel","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jacky","family":"Raharinjatovo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jenny","family":"Carlson","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rebecca","family":"Levine","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Evelyne","family":"Alyko","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramlat","family":"Jose","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tony","family":"Hughes","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Djenam","family":"Jacob","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yemane","family":"Yihdego","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kevin","family":"Opondo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stephen","family":"Poyer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,7,13]]},"reference":[{"key":"5421_CR1","volume-title":"World malaria report 2022","author":"WHO","year":"2022","unstructured":"WHO. World malaria report 2022. Geneva: World Health Organization; 2022."},{"key":"5421_CR2","volume-title":"Guidelines for monitoring the durability of long-lasting insecticidal mosquito nets under operational conditions","author":"WHO","year":"2011","unstructured":"WHO. Guidelines for monitoring the durability of long-lasting insecticidal mosquito nets under operational conditions. Geneva: World Health Organization; 2011."},{"key":"5421_CR3","doi-asserted-by":"publisher","first-page":"69","DOI":"10.1186\/1471-2334-14-69","volume":"14","author":"V Gnanguenon","year":"2014","unstructured":"Gnanguenon V, Azondekon R, Oke-Agbo F, Beach R, Akogbeto M. Durability assessment results suggest a serviceable life of two, rather than three, years for the current long-lasting insecticidal (mosquito) net (LLIN) intervention in Benin. BMC Infect Dis. 2014;14:69.","journal-title":"BMC Infect Dis"},{"key":"5421_CR4","doi-asserted-by":"publisher","first-page":"187","DOI":"10.1186\/s12936-020-03258-w","volume":"19","author":"KA Haji","year":"2020","unstructured":"Haji KA, Khatib BO, Obi E, Dimoso K, Koenker H, Babalola S, et al. Monitoring the durability of the long-lasting insecticidal nets Olyset\u00ae and PermaNet\u00ae 2.0 in similar use environments in Zanzibar. Malar J. 2020;19:187.","journal-title":"Malar J"},{"key":"5421_CR5","doi-asserted-by":"publisher","first-page":"344","DOI":"10.1186\/1475-2875-13-344","volume":"13","author":"E Hakizimana","year":"2014","unstructured":"Hakizimana E, Cyubahiro B, Rukundo A, Kabayiza A, Mutabazi A, Beach R, et al. Monitoring long-lasting insecticidal net (LLIN) durability to validate net serviceable life assumptions, in Rwanda. Malar J. 2014;13:344.","journal-title":"Malar J"},{"key":"5421_CR6","doi-asserted-by":"publisher","first-page":"123","DOI":"10.1186\/s12936-015-0640-4","volume":"14","author":"A Kilian","year":"2015","unstructured":"Kilian A, Koenker H, Obi E, Selby RA, Fotheringham M, Lynch M. Field durability of the same type of long-lasting insecticidal net varies between regions in Nigeria due to differences in household behaviour and living conditions. Malar J. 2015;14:123.","journal-title":"Malar J"},{"key":"5421_CR7","doi-asserted-by":"publisher","first-page":"26","DOI":"10.1186\/s12936-020-03549-2","volume":"20","author":"A Kilian","year":"2021","unstructured":"Kilian A, Obi E, Mansiangi P, Ab\u00edlio AP, Haji KA, Blaufuss S, et al. Variation of physical durability between LLIN products and net use environments: summary of findings from four African countries. Malar J. 2021;20:26.","journal-title":"Malar J"},{"key":"5421_CR8","doi-asserted-by":"publisher","first-page":"189","DOI":"10.1186\/s12936-020-03262-0","volume":"19","author":"P Mansiangi","year":"2020","unstructured":"Mansiangi P, Umesumbu S, Etewa I, Zandibeni J, Bafwa N, Blaufuss S, et al. Comparing the durability of the long-lasting insecticidal nets DawaPlus\u00ae 2.0 and DuraNet\u00a9 in northwest Democratic Republic of Congo. Malar J. 2020;19:189.","journal-title":"Malar J"},{"key":"5421_CR9","doi-asserted-by":"publisher","first-page":"124","DOI":"10.1186\/s12936-020-03194-9","volume":"19","author":"E Obi","year":"2020","unstructured":"Obi E, Okoh F, Blaufuss S, Olapeju B, Akilah J, Okoko OO, et al. Monitoring the physical and insecticidal durability of the long-lasting insecticidal net DawaPlus\u00ae 2.0 in three States in Nigeria. Malar J. 2020;19:124.","journal-title":"Malar J"},{"key":"5421_CR10","unstructured":"The PMI VectorLink Project. The PMI VectorLink Liberia 2021 ITN Durability Monitoring 36-Month Follow-Up Study Report. Washington, DC. The PMI VectorLink Project, Population Services International (PSI). 2021. https:\/\/www.durabilitymonitoring.org\/. Accessed 30 May 2025."},{"key":"5421_CR11","volume-title":"Conditions for deployment of mosquito nets treated with a pyrethroid and piperonyl butoxide","author":"WHO","year":"2017","unstructured":"WHO. Conditions for deployment of mosquito nets treated with a pyrethroid and piperonyl butoxide. Geneva: World Health Organization; 2017."},{"key":"5421_CR12","volume-title":"Guidance on the prioritization of insecticide-treated nets in situations where resources are limited","author":"WHO","year":"2023","unstructured":"WHO. Guidance on the prioritization of insecticide-treated nets in situations where resources are limited. Geneva: World Health Organization; 2023."},{"key":"5421_CR13","unstructured":"Alliance for malaria prevention (AMP). Net mapping project. https:\/\/netmappingproject.allianceformalariaprevention.com\/. Accessed 31 Jan 2024."},{"key":"5421_CR14","doi-asserted-by":"publisher","first-page":"71","DOI":"10.12688\/wellcomeopenres.14589.1","volume":"3","author":"R Akoton","year":"2018","unstructured":"Akoton R, Tchigossou GM, Dj\u00e8gb\u00e8 I, Yessoufou A, Atoyebi MS, Tossou E, et al. Experimental huts trial of the efficacy of pyrethroids\/piperonyl butoxide (PBO) net treatments for controlling multi-resistant populations of Anopheles funestus s.s. in Kpom\u00e8, Southern Benin. Wellcome Open Res. 2018;3:71.","journal-title":"Wellcome Open Res"},{"key":"5421_CR15","doi-asserted-by":"publisher","first-page":"379","DOI":"10.3390\/tropicalmed8080379","volume":"8","author":"S Azizi","year":"2023","unstructured":"Azizi S, Martin J, Mbewe NJ, Msapalla A, Mwacha S, Joram A, et al. Evaluation of durability as a function of fabric strength and residual bio-efficacy for the Olyset Plus and Interceptor G2 LLINs after 3 years of field use in Tanzania. Trop Med Infect Dis. 2023;8:379.","journal-title":"Trop Med Infect Dis"},{"key":"5421_CR16","doi-asserted-by":"publisher","first-page":"135","DOI":"10.1186\/s40249-021-00916-2","volume":"10","author":"PM Gichuki","year":"2021","unstructured":"Gichuki PM, Kamau L, Njagi K, Karoki S, Muigai N, Matoke-Muhia D, et al. Bioefficacy and durability of Olyset\u00ae Plus, a permethrin and piperonyl butoxide-treated insecticidal net in a 3-year long trial in Kenya. Infect Dis Poverty. 2021;10:135.","journal-title":"Infect Dis Poverty"},{"key":"5421_CR17","doi-asserted-by":"publisher","first-page":"e0000453","DOI":"10.1371\/journal.pgph.0000453","volume":"2","author":"E Lukole","year":"2022","unstructured":"Lukole E, Cook J, Mosha JF, Messenger LA, Rowland M, Kleinschmidt I, et al. Protective efficacy of holed and aging PBO-pyrethroid synergist-treated nets on malaria infection prevalence in north-western Tanzania. PLoS Glob Public Health. 2022;2:e0000453.","journal-title":"PLoS Glob Public Health"},{"key":"5421_CR18","doi-asserted-by":"publisher","first-page":"108","DOI":"10.3390\/insects15020108","volume":"15","author":"J Martin","year":"2024","unstructured":"Martin J, Lukole E, Messenger LA, Aziz T, Mallya E, Bernard E, et al. Monitoring of fabric integrity and attrition rate of dual-active ingredient long-lasting insecticidal nets in Tanzania: a prospective cohort study nested in a cluster randomized controlled trial. Insects. 2024;15:108.","journal-title":"Insects"},{"key":"5421_CR19","doi-asserted-by":"publisher","first-page":"150","DOI":"10.1186\/s13071-021-04641-5","volume":"14","author":"JL Martin","year":"2021","unstructured":"Martin JL, Mosha FW, Lukole E, Rowland M, Todd J, Charlwood JD, et al. Personal protection with PBO-pyrethroid synergist-treated nets after 2 years of household use against pyrethroid-resistant Anopheles in Tanzania. Parasit Vectors. 2021;14:150.","journal-title":"Parasit Vectors"},{"key":"5421_CR20","unstructured":"WHO. Tackling malaria in Sierra Leone. World Health Organization, Regional Office for Africa. 2023. https:\/\/www.afro.who.int\/news\/tackling-malaria-sierra-leone. Accessed 29 Nov 2023."},{"key":"5421_CR21","unstructured":"Statistics Sierra Leone (Stats SL) and ICF. 2020. Sierra Leone Demographic and Health Survey 2019. Freetown, Sierra Leone, and Rockville, Maryland, USA: Stats SL and ICF. https:\/\/dhsprogram.com\/pubs\/pdf\/FR365\/FR365.pdf."},{"key":"5421_CR22","unstructured":"ITN Access and Use Report - Breakthrough ACTION and RESEARCH. https:\/\/breakthroughactionandresearch.org\/resources\/itn-use-and-access-report\/. Accessed 30 Jan 2024."},{"key":"5421_CR23","unstructured":"WHO. Prequalification of Medical Products (IVDs, Medicines, Vaccines and Immunization Devices, Vector Control). Geneva, World Health Organization. https:\/\/extranet.who.int\/prequal\/vector-control-products\/prequalified-product-list?field_product_type_tid=100&field_pqt_vc_ref_number_value=&title=&field_applicant_tid=&field_active_ingredient_synergis_tid=. Accessed 25 Nov 2023."},{"key":"5421_CR24","doi-asserted-by":"publisher","first-page":"173","DOI":"10.1186\/s12936-024-04989-w","volume":"23","author":"J Raharinjatovo","year":"2024","unstructured":"Raharinjatovo J, Dabir\u00e9 RK, Esch K, Soma DD, Hien A, Camara T, et al. Physical and insecticidal durability of Interceptor\u00ae, Interceptor\u00ae G2, and PermaNet\u00ae 3.0 insecticide-treated nets in Burkina Faso: results of durability monitoring in three sites from 2019 to 2022. Malar J. 2024;23:173.","journal-title":"Malar J"},{"key":"5421_CR25","unstructured":"Template-Durability-Monitoring-Protocol-revised-Feb2022-with-comment.docx. https:\/\/view.officeapps.live.com\/op\/view.aspx?src=https%3A%2F%2Fwww.durabilitymonitoring.org%2Fwp-content%2Fuploads%2F2022%2F03%2F2a.-Template-Durability-Monitoring-Protocol-revised-Feb2022-with-comment.docx&wdOrigin=BROWSELINK. Accessed 25 Nov 2023."},{"key":"5421_CR26","unstructured":"Netty H. Handbooks. 2022. https:\/\/www.cipac.org\/index.php\/m-p\/handbooks. Accessed 28 Nov 2023."},{"key":"5421_CR27","doi-asserted-by":"publisher","first-page":"209","DOI":"10.1186\/s12936-020-03282-w","volume":"19","author":"AP Ab\u00edlio","year":"2020","unstructured":"Ab\u00edlio AP, Obi E, Koenker H, Babalola S, Saifodine A, Zulliger R, et al. Monitoring the durability of the long-lasting insecticidal nets MAGNet and Royal Sentry in three ecological zones of Mozambique. Malar J. 2020;19:209.","journal-title":"Malar J"},{"key":"5421_CR28","unstructured":"WHO. Guidance note for estimating the longevity of long-lasting insecticidal nets in malaria control. World Health Organization, Regional Office for Africa. 2023. https:\/\/www.afro.who.int\/publications\/who-guidance-note-estimating-longevity-long-lasting-insecticidal-nets-malaria-control. Accessed 27 Nov 2023."},{"key":"5421_CR29","unstructured":"Methods-for-monitoring-the-durability-of-a-dual-AI-insecticide-treated-net-containing-a-pyrethroid-plus-piperonyl-butoxide-PBO.pdf. https:\/\/innovationtoimpact.org\/wp-content\/uploads\/2022\/07\/Methods-for-monitoring-the-durability-of-a-dual-AI-insecticide-treated-net-containing-a-pyrethroid-plus-piperonyl-butoxide-PBO.pdf. Accessed 21 Mar 2024."},{"key":"5421_CR30","unstructured":"LLIN Durability Monitoring. Toolkit and Data Repository for PMI-funded LLIN durability monitoring studies. https:\/\/www.durabilitymonitoring.org\/. Accessed 15 Mar 2024."},{"key":"5421_CR31","unstructured":"National Malaria Control Programme. Malaria Indicator Survey 2021. https:\/\/malariasurveys.org\/documents\/SL%20MIS%20final%20report-4.3.2022.pdf. Accessed 26 May 2025."},{"key":"5421_CR32","unstructured":"WHO publishes recommendations on two new types of insecticide-treated nets. https:\/\/www.who.int\/news\/item\/14-03-2023-who-publishes-recommendations-on-two-new-types-of-insecticide-treated-nets. Accessed 15 Nov 2023."},{"key":"5421_CR33","doi-asserted-by":"publisher","first-page":"310","DOI":"10.1186\/s12936-020-03383-6","volume":"19","author":"O Briet","year":"2020","unstructured":"Briet O, Koenker H, Norris L, Wiegand R, Vanden Eng J, Thackeray A, et al. Attrition, physical integrity and insecticidal activity of long-lasting insecticidal nets in sub-Saharan Africa and modelling of their impact on vectorial capacity. Malar J. 2020;19:310.","journal-title":"Malar J"}],"container-title":["Malaria Journal"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12936-025-05421-7.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/article\/10.1186\/s12936-025-05421-7\/fulltext.html","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/link.springer.com\/content\/pdf\/10.1186\/s12936-025-05421-7.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,9,7]],"date-time":"2025-09-07T06:57:11Z","timestamp":1757228231000},"score":1,"resource":{"primary":{"URL":"https:\/\/malariajournal.biomedcentral.com\/articles\/10.1186\/s12936-025-05421-7"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,7,13]]},"references-count":33,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2025,12]]}},"alternative-id":["5421"],"URL":"https:\/\/doi.org\/10.1186\/s12936-025-05421-7","relation":{},"ISSN":["1475-2875"],"issn-type":[{"value":"1475-2875","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,7,13]]},"assertion":[{"value":"2 December 2024","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"16 May 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"13 July 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The evaluation, initiated in 2020, was a collaborative effort between researchers from Population Services International (PSI), PMI, NBI, and the Sierra Leone NMCP. Ethical approval was secured from the Sierra Leone Ethics and Scientific Review Committee (Version 2020), subsequently renewed for subsequent rounds. Additionally, clearance was obtained from the Research Ethics Board of PSI, Washington, DC, USA. Prior to each evaluation round, all participants gave informed consent.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"Not applicable.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}],"article-number":"230"}}