The commercialization of “unvaccinated” blood: A cross‐sectional analysis of organizations marketing services based on donor COVID ‐19 vaccination status

BACKGROUND: Requests for blood from donors not vaccinated against COVID-19 persist despite evidence that donor vaccination does not affect transfusion recipients. We characterized organizations marketing services based on donor vaccination status. STUDY DESIGN AND METHODS: We conducted a cross-sectional analysis of publicly available websites from organizations marketing access to unvaccinated blood. Between July 25 and July 26, 2026, we performed 30 prespecified Google searches in six languages and screened the first 50 results per query. We included organizations offering enrollment, paid access, documents, donor registration, matching, or assistance based on COVID-19 vaccination status. We coded geographic reach, payment, services, donor classification, diagnostic claims, blood handling, and operational limitations. RESULTS: Eight organizations met inclusion criteria; four described international reach. All marketed an existing or planned donor registry or matching service, seven charged fees or offered paid access, six issued patient-facing documents, and seven advertised clinician directories, referrals, advocacy, or legal support. Donor status was classified through self-report, records, declarations, exemptions, social media screenshots, membership identification, or trust. One organization promoted unvalidated diagnostic tests. All depended on external clinicians, hospitals, or blood establishments; none described collecting, testing, processing, or storing blood components. Several acknowledged that matching was unavailable or not guaranteed or that hospital acceptance varied. DISCUSSION: Organizations are monetizing vaccine misinformation by selling memberships, documents, donor registries, professional directories, and advocacy services. These products give vaccination status the appearance of a medically meaningful blood attribute and may channel unsupported directed donation requests to hospitals and blood establishments.