Pilot protocol for influenza vaccine effectiveness against laboratory-confirmed influenza infections (symptomatic) using healthcare worker cohorts - ISS-G20 Laboratorium Repository

In 2020, the European Commission stressed the importance of continuously monitoring the safety and effectiveness of vaccines in the EU/EEA during the post-authorisation phase, with particular emphasis on COVID-19 vaccines in the context of the ongoing pandemic.

Entire content available on: https://www.ecdc.europa.eu/en/publications-data/influenza-vaccine-effectiveness-pilot-protocol-healthcare-worker-cohorts