By Kate Kelland
LONDON, April 30 (Reuters) - A very small number of mainly frail, elderly COVID-19 patients are being hospitalised and dying even after having a first dose of Pfizer s or AstraZeneca s vaccines, but this does not mean the shots aren t working, UK researchers said on Friday.
Presenting real-world data on a subset of hospitalised COVID-19 patients in the UK, the researchers said the findings showed some level of vaccine failure - in other words cases where vaccinated people still become infected and get sick - but that this was not unexpected. It s mostly occurring in the group which are most at risk of severe disease anyway, which is the elderly. These people are very frail and very elderly, said Calum Semple, a University of Liverpool professor of child health and outbreak medicine, who co-led the research.
Post-vaccine COVID infections and deaths rare, UK study finds
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Post-vaccine COVID infections and deaths rare, UK study finds
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