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Previous COVID-19 infection but not Long-COVID is associated with increased adverse events following BNT162b2/Pfizer vaccination

By Rachael Kathleen Raw, Clive Kelly, Jon Rees, Caroline Wroe, David Robert Chadwick

Posted 22 Apr 2021
medRxiv DOI: 10.1101/2021.04.15.21252192

Recent evidence suggests individuals with a history of COVID-19 are more likely to experience Adverse Events (AEs) following vaccination. A survey of 974 healthcare staff found that those with prior positive SARS-CoV-2 PCR and/or antibody results, reported more moderate/severe AEs, than those without past infection, particularly systemic symptoms, as did those with features of long COVID.

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