Home » AstraZeneca Vaccine Booster Shot Delivers Strong Immune Response, Study Says
AstraZeneca Vaccine Booster Shot Delivers Strong Immune Response, Study Says
A third shot of AstraZeneca’s COVID-19 vaccine used as a booster prompts a strong immune response, including against variant strains of the SARS-CoV-2 virus, Oxford University researchers have reported.
The Oxford-led study found that the vaccine’s 76 percent efficacy was sustained for at least 90 days after just one dose and that a second dose can be given after 45 weeks and deliver an improved immune response.
The latest findings offer some assurance of efficacy of a booster should a third shot of the adenovirus-based vaccine be needed to protect against new variant strains.
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