COVID-19 Boosters Halve Hospitalization Risk in Cancer Patients, Study Urges Enhanced Vaccination Outreach

July 17, 2025
COVID-19 Boosters Halve Hospitalization Risk in Cancer Patients, Study Urges Enhanced Vaccination Outreach
  • A recent study led by Cedars-Sinai investigators, published in JAMA Oncology, highlights that COVID-19 vaccine boosters significantly decrease hospitalization and ICU admissions among cancer patients, emphasizing the importance of vaccination in this high-risk group.

  • Despite the proven effectiveness, vaccine uptake remains low, with only 38% receiving the bivalent booster and 69% receiving the monovalent booster, indicating a need for improved vaccination outreach.

  • Among over 72,800 cancer patients undergoing chemotherapy or immunotherapy, 69% had received a monovalent booster by January 2022, underscoring the necessity to boost vaccination rates in this vulnerable population.

  • The findings underscore the ongoing importance of surveillance and vaccination efforts as SARS-CoV-2 continues to circulate endemically, especially among immunosuppressed populations.

  • The study was conducted by Kaiser Permanente Northern California with funding from organizations including the NCI Serological Sciences Network, reflecting collaborative efforts in COVID-19 research.

  • Dr. Robert Figlin highlighted that this research adds critical knowledge about vaccine effectiveness in high-risk groups and plans are underway for further studies as vaccine formulations and variants evolve.

  • Additional research is planned to evaluate vaccine effectiveness in other immunocompromised groups, such as patients with autoimmune diseases and organ transplant recipients, with Cedars-Sinai preparing to publish related findings.

  • The Feinstein Institutes for Medical Research, a leading organization in New York, continues to contribute significantly to medical research, including studies on COVID-19 and cancer.

  • The research, led by Dr. Jacek Skarbinski, emphasizes the urgent need to enhance vaccination outreach among cancer patients, especially given the observed benefits.

  • The study provides real-world evidence supporting vaccination recommendations for vulnerable cancer patients, demonstrating a 50% reduction in COVID-19 hospitalization risk among vaccinated individuals.

  • Research also indicated that disruptions in breast cancer surveillance during the pandemic resulted in a 6% decrease in imaging for early-stage patients, with no significant difference in recurrence rates.

Summary based on 13 sources


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