It looks more and more like a race against time.
Faced with the Delta variant, the tempo of the vaccination must accelerate but the first-time vaccinated are no longer the only priority to maximize protection against the coronavirus.
Recall campaigns are already being organized.
The injection, at the start of the school year, of a third dose for people aged over 80 or vulnerable had been confirmed by Emmanuel Macron during a recent videoconference organized from his resort at Fort Brégançon.
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But this Tuesday, the High Authority of Health (HAS) published a favorable opinion for a recall campaign for those over 65 years old which will be organized from October 23, in parallel with the seasonal flu vaccination campaign.
A decision motivated by several recent studies which find a loss of effectiveness of vaccines over time.
Does the effectiveness of vaccines decline over time, and against the Delta variant?
Several recent studies have provided new data on the evolution of immunity against Sars-CoV-2,
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