30/01/2023 (Agence Europe) – The European Centre for Disease Prevention and Control (ECDC) proposed, on Monday 30 January, a guiding protocol for a common methodology to assess the effectiveness of the Covid-19 vaccine. This protocol uses health data registers established in the participating EU Member States/European Economic Area. It was developed after a pilot study was conducted. The protocol was originally commissioned by ECDC under the Vaccine Effectiveness, Burden and Impact...