This study states that The end of 2019 saw the emergence of a novel severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), which causes coronavirus disease 2019 (COVID-19). Europe has been heavily affected, with 14 750 809 cases and 336 422 deaths reported from Europe between 31 December 2019 and 18 November 2020.1 The second wave in autumn is causing increasing trends in hospital and intensive care unit admissions. 2 In the average winter season, hospital bed occupancy is higher, due to influenza patients.3, 4 In the 2020-21 winter season with the ongoing COVID-19 pandemic, it is crucial to reduce the burden on hospitals, as much as possible. Influenza vaccination, despite its sometime moderate vaccine effectiveness, is an important factor in reducing hospitalisations5 and is specifically important for the 2020-21 season with SARS-CoV-2 circulation.

However, claims of influenza vaccination increasing COVID-19 risk are circulating, particularly on social media. An article on influenza vaccination increasing the risk of seasonal coronaviruses6 has fuelled these claims, despite its results having been refuted.

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