In this study, there was a decreasing trend in anti-spike antibodies, anti-RBD antibodies and nAb titres with increasing age, although large variability was observed among individual titres with wide, overlapping CIs between age groups.
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Immunogenicity and safety of AZD1222 (ChAdOx1 nCoV-19) against SARS-CoV-2 in Japan: a double-blind, randomized controlled phase 1/2 trial.
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