AstraZeneca may have used outdated information in trial – US health officials

AstraZeneca may have used outdated information in trial – US health officials
The AstraZeneca coronavirus vaccine (Matthias Schrader/AP)

Results from a US trial of AstraZeneca’s Covid-19 vaccine may have used “outdated information”, according to federal health officials in the country.

The Data and Safety Monitoring Board said it was concerned that AstraZeneca may have provided an incomplete view of the efficacy data.

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