Received: 3 September 2020
Accepted: 3 February 2021
First Online: 15 February 2021
Ethics approval and consent to participate
: As a passive surveillance system, the EPSS requires no informed consent. No sensitive data were collected about the vaccinees, and no ethics committee submission was required in Finland for the EPSS. This surveillance was conducted in accordance with the EMA/PRAC/222346/2014 interim guidance on enhanced safety surveillance for seasonal influenza vaccines in the EU [CitationRef removed].
: Not applicable.
: ALC, SW, and AM are employed by Sanofi Pasteur.MN is employed by Suomen Terveystalo, and has received investigator fees from Amgen, Asarina Pharma, Eli Lilly, GSK and Teva.LS is a contractor employed by Sanofi Pasteur.