Fig. 6.

Covid-19 vaccine effectiveness against symptomatic infections among persons aged 50 years or over, according to received vaccine and to the time elapsed since the receipt of each vaccine dose, data collected from January 1st to December 12, 2021

Abbreviations: D1: First vaccine dose. D2: Second vaccine dose. DB: Booster dose. The numbers in the x-axis indicate the time (in days or months) elapsed since the receipt of the dose of interest. Precisely, thresholds used to define month intervals are 31–62, 63–90, 91–120, 121–150, 151–182, >182 in days. Cominarty: Primary vaccine course with Cominarty doses only. Spikevax: Primary vaccine course with Spikevax doses only. Vaxzevria: Primary vaccine course with Vaxzevria doses only. Booster dose are relative to mRNA-vaccine Cominarty or Spikevax