Study finds AstraZeneca Covid-19 vaccine higher efficacy with a longer interval between the first and second dose

An Oxford released a study shows that higher vaccine efficacy can be achieved with a longer interval between the first and second dose and that a single vaccine dose is highly effective in the first 90 days. The study, which has not yet been peer-reviewed, further showed that the AstraZeneca vaccine can cut transmission of the virus by two-thirds and prevented severe disease.

“That reduction in transmission, as well as the fact there is no hospitalizations, the combination of that is very good news. And it categorically supports the strategy we’ve been taking on having a 12-week gap between the doses,” Hancock told Sky News on Wednesday.