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. 2021 Jul 27;30(4):e15. doi: 10.1136/ejhpharm-2021-002933

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© European Association of Hospital Pharmacists 2023. No commercial re-use. See rights and permissions. Published by BMJ.

This article is made freely available for personal use in accordance with BMJ’s website terms and conditions for the duration of the covid-19 pandemic or until otherwise determined by BMJ. You may use, download and print the article for any lawful, non-commercial purpose (including text and data mining) provided that all copyright notices and trade marks are retained.

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Onset (panel A) and duration (panel B) of adverse effects and frequency of symptomatic drug intake (panel C) after the first and second doses of Pfizer/BioNTech COVID-19 vaccine stratified by previous and non-previous COVID-19 infection. Latency and duration are expressed as mean±SD in hours, while the frequency of symptomatic drug intake after vaccination is expressed as a percentage of previous and non-previous COVID-19 infected subjects (respectively 291 and 1739; panel C). Statistical analyses of latency and duration were performed with the Student t-test, while a comparison of frequencies was performed with the χ² test. ***p<0.001 versus non-previous COVID-19 infection; ###p<0.001 versus second dose.