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No evidence of immune exhaustion after repeated SARS-CoV-2 vaccination in vulnerable and healthy populations

Summary by doi.org
Frequent SARS-CoV-2 vaccination in vulnerable populations has raised concerns that this may contribute to T cell exhaustion, which could negatively affect the quality of immune protection. Herein, we examined the impact of repeated SARS-CoV-2 vaccination on T cell phenotypic and functional exhaustion in frail older adults in long-term care (n = 23), individuals on immunosuppressive drugs (n = 10), and healthy adults (n = 43), in Canada. Spike-sp…
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doi.org broke the news in on Saturday, June 7, 2025.
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