PMID- 36963011 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230327 IS - 2767-3375 (Electronic) IS - 2767-3375 (Linking) VI - 3 IP - 2 DP - 2023 TI - Increased adverse events following third dose of BNT162b2/Pfizer vaccine in those with previous COVID-19, but not with concurrent influenza vaccine. PG - e0001053 LID - 10.1371/journal.pgph.0001053 [doi] LID - e0001053 AB - Prior studies suggest that adverse events (AEs) following doses one and two of BNT162b2/Pfizer vaccine are worse in those with a prior history of COVID-19. To establish whether this outcome applies to a third/booster dose, we conducted a survey with 534 healthcare workers (HCW) in Northeast England, who reported AEs following all three doses of BNT162b2/Pfizer vaccine. We also explored AEs associated with concurrent seasonal influenza immunisation, in a subset of 492 HCWs. For all doses of BNT162b2/Pfizer vaccine there was a cluster of systemic AEs that were consistently worse in HCWs with a prior history of COVID-19. AEs were no worse in HCWs who received their third/booster dose within 7 days of the influenza jab, rather than further apart. Gender and the presence of ongoing COVID-19 symptoms (OCS) had no effect on AEs associated with COVID-19 or influenza vaccination, though younger HCWs experienced more AEs overall. Our findings have implications for vaccine hesitancy and immunisation protocols. CI - Copyright: (c) 2023 Raw et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. FAU - Raw, Rachael K AU - Raw RK AUID- ORCID: 0000-0001-7593-3436 AD - School of Medicine and Health, Newcastle University, Newcastle upon Tyne, United Kingdom. FAU - Rees, Jon AU - Rees J AUID- ORCID: 0000-0002-3295-244X AD - The School of Psychology, University of Sunderland, Sunderland, United Kingdom. FAU - Chadwick, David R AU - Chadwick DR AD - Centre for Clinical Infection, James Cook University Hospital, Middlesbrough, United Kingdom. LA - eng PT - Journal Article DEP - 20230217 PL - United States TA - PLOS Glob Public Health JT - PLOS global public health JID - 9918283779606676 PMC - PMC10021629 COIS- The authors have declared that no competing interests exist. EDAT- 2023/03/25 06:00 MHDA- 2023/03/25 06:01 PMCR- 2023/02/17 CRDT- 2023/03/24 18:27 PHST- 2022/08/17 00:00 [received] PHST- 2023/01/23 00:00 [accepted] PHST- 2023/03/24 18:27 [entrez] PHST- 2023/03/25 06:00 [pubmed] PHST- 2023/03/25 06:01 [medline] PHST- 2023/02/17 00:00 [pmc-release] AID - PGPH-D-22-01340 [pii] AID - 10.1371/journal.pgph.0001053 [doi] PST - epublish SO - PLOS Glob Public Health. 2023 Feb 17;3(2):e0001053. doi: 10.1371/journal.pgph.0001053. eCollection 2023.