Elderly receive good protection with these two Covid-19 vaccines

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.