New study shows XBB.1.5 COVID-19 vaccine significantly reduces hospitalizations and ICU admissions in older adults


A recent study in the Netherlands evaluated the effectiveness of the XBB.1.5 COVID-19 vaccine in reducing hospitalizations and ICU admissions among previously vaccinated adults aged 60 and over from October to December 2023. The study found that the vaccine was 70.7% effective against hospitalization and 72.3% effective against ICU admission. The research had limitations, such as incomplete hospitalization data and potentially underestimating vaccine effectiveness, but the findings suggested that the vaccine was working well in reducing severe COVID-19 outcomes in older adults. However, the study has not been peer-reviewed and should not guide clinical practice.

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