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Giving Covid-19 vaccines from either AstraZeneca-Oxford, Pfizer-BioNTech or Johnson & Johnson as a booster after two doses of the Covid-19 inactivated-virus vaccine from Sinovac, leads to significantly higher antibodies, a study has found, reports Reuters.
The best response was seen when an RNA vaccine was given as a booster after the standard schedule of Sinovac's CoronaVac, researchers from Oxford University said, adding that the responses were seen against Delta and Omicron coronavirus variants too.
