An 86-year-old British woman gets a dose of the AstraZeneca/Oxford Covid-19 vaccine, which provides about 86% antibody protection five to six weeks after the first dose, as her 90-year-old husband looks on. — AFP
People aged over 80 receiving a single dose of either the Pfizer/BioNTech or AstraZeneca/Oxford Covid-19 vaccines show equivalent antibody responses five weeks post-vaccination.
However, stronger cellular (T cell) responses were seen in those who had received the AstraZeneca/Oxford vaccine.
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