LONDON, United Kingdom (AFP) — British pharmaceutical giant AstraZeneca said Thursday that a third, or “booster”, dose of its Covid-19 vaccine Vaxzevria “significantly” lifted antibody levels against the Omicron strain in a laboratory study. “Vaxzevria significantly boosted levels of antibodies against the Omicron SARS-CoV-2 variant (B.1.1.529) following a third dose booster,” the company said in a statement citing the study. “The third dose booster vaccination neutralised the Omicron variant to levels that were broadly […]