Latest XBB COVID-19 vaccine offers protection against hospitalization, deaths --study

Latest XBB COVID-19 vaccine offers protection against hospitalization, deaths Today, JAMA Internal Medicine published a study calculating the protection offered by the latest Pfizer COVID-19 XBB vaccine compared to older vaccines against COVID-associated hospitalization and emergency department (ED) or urgent care (UC) visits.  CIDRAP

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The authors compared outcomes among those who had received an updated XBB vaccine and those who had not received an XBB vaccine of any kind, regardless of prior COVID-19 vaccination or infection history.

"Receipt of prior (non-XBB) versions of COVID-19 vaccines was also compared with being unvaccinated to estimate remaining protection from older vaccines," the authors said.

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