Vaccination as a Key Determinant of Influenza Disease Severity in Allogeneic Hematopoietic Stem Cell Transplant Recipients: An Observational Retrospective Study.

Open Forum Infect Dis · 2026 · PMC12784251 · PMID 41522680

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Furthermore, vaccination significantly reduced the risk of hospitalization and showed a trend toward lower oxygen therapy requirements, thereby reinforcing its clinical benefit across multiple outcomes.

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