Immune response to vaccines better than expected after 80 years
DECRYPTION – UK study shows good immune response to AstraZeneca and Pfizer / BioNTech vaccines.
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in the United Kingdom by the UK Coronavirus Immunology Consortium (UK CIC), submitted to the journal The Lancet but not yet peer reviewed.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.», 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.
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. Since
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