Coronavirus: Reports of suspected adverse reactions to COVID-19 vaccines in Switzerland – update

1 October 2021 – In the reporting period from 1 January 2021 to 21 September 2021, Swissmedic evaluated 7’571 reports on suspected adverse drug reactions to COVID-19 vaccinations in Switzerland. At 4’970 (65.6 %), most of the reports were classified as not serious, while 2’601 (34.4 %) reports were classified as serious. In contrast, 10’204’392 vaccine doses were administered in Switzerland during this period. The benefit-risk ratio of the vaccines used remains positive.

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