Mixing COVID-19 vaccines boosts antibodies: study
Administration of an AstraZeneca dose followed by a Pfizer dose increases neutralising activity sixfold compared with two AstraZeneca doses, reports South Korean researchers
A mixed vaccination of first AstraZeneca and then a Pfizer COVID-19 vaccine boosted neutralising antibody levels by six times compared with two AstraZeneca doses, research from South Korea shows.
The study involved 499 medical workers – 100 receiving mixed doses, 200 taking two doses of the Pfizer vaccine and the remainder getting two AstraZeneca inoculations.
