{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T23:14:37Z","timestamp":1789168477810,"version":"build-2803163510"},"reference-count":18,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T00:00:00Z","timestamp":1782086400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,6,22]],"date-time":"2026-06-22T00:00:00Z","timestamp":1782086400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Transfusion"],"published-print":{"date-parts":[[2026,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Mass casualty and disaster events (MCEs) and national blood donation appeals generate surges in blood donation, but how these responses differ by product type, donor demographics, and retention remains incompletely understood, particularly for apheresis platelets.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Study Design and Methods<\/jats:title>\n                    <jats:p>We analyzed donation data from five major U.S. MCEs and five national blood donation appeals between 2000 and 2024, characterizing whole blood (WB) and platelet donations by donor age, first\u2010time versus repeat status, and return within 1 year.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>WB donation demonstrated rapid, high\u2010amplitude surges during MCEs that resolved within 1\u20132\u2009weeks, driven in part by younger and first\u2010time donors. In contrast, appeals produced smaller increases sustained through the duration of the appeal. Platelet donation followed a distinct pattern, with a smaller, yet slightly longer surge response during MCEs and more robust increases during national blood donation appeals, while both relied almost exclusively on older, repeat donors. Donor retention differed primarily by donor history. Repeat donors were substantially more likely to return than first\u2010time donors across age groups and event types, with older repeat donors showing the highest retention.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>These findings highlight structural differences between WB and platelet donor systems with direct implications for disaster preparedness and long\u2010term blood supply resilience in the United States.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/trf.70304","type":"journal-article","created":{"date-parts":[[2026,6,23]],"date-time":"2026-06-23T05:55:22Z","timestamp":1782194122000},"page":"1777-1785","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Donor mobilization during U.S. mass casualty and disaster events: Differential effects on whole blood and apheresis platelet supply"],"prefix":"10.1111","volume":"66","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1830-6262","authenticated-orcid":false,"given":"Umesh","family":"Singh","sequence":"first","affiliation":[{"name":"American Red Cross Biomedical Services, Medical and Scientific Office  Washington DC USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8595-8856","authenticated-orcid":false,"given":"Bethany","family":"Brown","sequence":"additional","affiliation":[{"name":"American Red Cross Biomedical Services, Medical and Scientific Office  Washington DC USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5313-0376","authenticated-orcid":false,"given":"Pampee P.","family":"Young","sequence":"additional","affiliation":[{"name":"American Red Cross Biomedical Services, Medical and Scientific Office  Washington DC USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2026,6,22]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.bja.2021.07.027"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.5055\/ajdm.2019.0332"},{"issue":"2","key":"e_1_2_9_4_1","article-title":"Mass casualty events: blood transfusion emergency preparedness across the continuum of care","volume":"56","author":"Doughty H","year":"2016","journal-title":"Transfusion"},{"key":"e_1_2_9_5_1","unstructured":"Response OotASfPa.Managing Blood Supply Demand and Donations in a Disaster. In: Services USDoHaH ed. Washington DC: U.S. Department of Health and Human Services Office of the Assistant Secretary for Preparedness and Response (ASPR).2019."},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1111\/trf.16145"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1537-2995.2011.03279.x"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.289.17.2246"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1537-2995.1991.31892023497.x"},{"key":"e_1_2_9_10_1","unstructured":"America's Blood Supply in the Aftermath of September 11.Hearing before the subcommittee on oversight and investigations of the committee on energy and commerce committee on energy and commerce house of representatives 107th congress. Washington DC: Government Printing Office 2002.2001."},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM200202213460813"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1080\/17474086.2023.2209716"},{"key":"e_1_2_9_13_1","unstructured":"MyersDJ CollinsRA.Blood Donation StatPearls: Blood Donation. Treasure Island (FL) ineligible companies. Disclosure: Ryan Collins declares no relevant financial relationships with ineligible companies.2025."},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.4103\/ajts.AJTS_127_16"},{"key":"e_1_2_9_15_1","first-page":"4","article-title":"Donor recruitment: motivate their hearts","volume":"2019","author":"Senaldi E","year":"2019","journal-title":"Ann Blood"},{"key":"e_1_2_9_16_1","doi-asserted-by":"publisher","DOI":"10.1111\/trf.18187"},{"key":"e_1_2_9_17_1","doi-asserted-by":"publisher","DOI":"10.1111\/vox.12916"},{"key":"e_1_2_9_18_1","doi-asserted-by":"publisher","DOI":"10.33696\/haematology.6.065"},{"key":"e_1_2_9_19_1","unstructured":"Organization WH.Guidance on ensuring a sufficient supply of safe blood and blood components during emergencies. Geneva: World Health Organization.2023."}],"container-title":["Transfusion"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/trf.70304","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1111\/trf.70304","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/trf.70304","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T22:51:51Z","timestamp":1789167111000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/trf.70304"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,6,22]]},"references-count":18,"journal-issue":{"issue":"9","published-print":{"date-parts":[[2026,9]]}},"alternative-id":["10.1111\/trf.70304"],"URL":"https:\/\/doi.org\/10.1111\/trf.70304","archive":["Portico"],"relation":{},"ISSN":["0041-1132","1537-2995"],"issn-type":[{"value":"0041-1132","type":"print"},{"value":"1537-2995","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,6,22]]},"assertion":[{"value":"2026-02-17","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-05-30","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2026-06-22","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}