AstraZeneca and Pfizer / BioNTech vaccines induce a good immune response in people over 80 years of age for up to 5 weeks after a single injection.
These results come from a study conducted in the UK by the UK Coronavirus Immunology Consortium (UK CIC), submitted to
but not yet peer reviewed.
This is completely consistent with what recent real-life studies in Scotland and the UK show that older people have a good response to vaccines, including AstraZeneca's.
», Comments Jean-Daniel Lelièvre, head of the infectious diseases department at Henri-Mondor Hospital (Créteil) and vaccine expert at the Haute Autorité de santé (HAS).
The data show similar antibody production but enhanced cellular immunity with the AstraZeneca vaccine.
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When it was put on the French market, the HAS recommended reserving this vaccine for people under 65, for lack of sufficient data on older subjects.
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