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For immunocompromised patients with autoimmune rheumatic diseases, updated COVID-19 vaccines pack a much bigger punch than the original series. A large U.S. study found that patients who received a booster or updated vaccine were significantly less likely to be hospitalized for COVID-19. Researchers say fewer than 20 previously vaccinated patients need an updated shot to prevent one hospitalization.
For patients with autoimmune rheumatic conditions — a group at heightened risk for severe COVID-19 — staying current on vaccine updates really pays off. A large retrospective study published in Arthritis Care & Research analyzed nearly 61,000 immunocompromised patients and found that those who received booster or updated (2023–2024) COVID-19 vaccines had dramatically lower odds of COVID-related hospitalization compared to those who only completed the initial series.
The study, led by Dr. Lesley E. Jackson of the University of Alabama at Birmingham, used data from the National Clinical Cohort Collaborative spanning December 2020 to August 2024. Researchers noted a concerning trend of declining vaccine uptake even among the highest-risk patients — making these findings especially timely.
By the Numbers:
Why it matters: With vaccine uptake declining even among vulnerable populations, this study delivers a clear, data-backed message for clinicians and policymakers: updated COVID vaccines offer meaningful, potentially life-saving protection for immunocompromised patients — and encouraging this group to stay current should be a clinical priority.
