Study shows mixing AstraZeneca and Pfizer vaccines generates strong immune response against COVID-19

Mixing doses of the Pfizer and AstraZeneca vaccines can generate a strong immune response against COVID-19, an Oxford University study has found. The study, conducted by Oxford Vaccine Group’s Com-Cov vaccine trial, found that those who are given a dose of AstraZeneca followed by a dose of Pfizer four weeks later generated a better immune response. Oxford developed […]

Why countries are halting the AstraZeneca shot

Nearly a dozen countries including Germany, France and Italy have all temporarily suspended their use of AstraZeneca’s coronavirus vaccine after reports last week that some people in Denmark and Norway who got a dose developed blood clots, even though there’s no evidence that the shot was responsible. The European Medicines Agency and the World Health […]

AstraZeneca: Shot will be effective against COVID-19 variant

The head of drugmaker AstraZeneca, which is developing a coronavirus vaccine widely expected to be approved by U.K. authorities this week, said Sunday that researchers believe the shot will be effective against a new variant of the virus driving a rapid surge in infections in Britain. AstraZeneca chief executive Pascal Soriot also told the Sunday […]

AstraZeneca COVID-19 vaccine trial paused after ‘single event’ illness

Late-stage studies of AstraZeneca’s COVID-19 vaccine candidate are on temporary hold while the company investigates whether a patient suffered a serious side effect or if the illness had nothing to do with the shot. In a statement issued Tuesday evening, the company said its “standard review process triggered a pause to vaccination to allow review […]