Dosing Mix-up Raises Questions About New COVID Vaccine Unlisted Video

A manufacturing error is raising concerns about a promising COVID-19 vaccine being developed.
The vaccine was developed by pharmaceutical company AstraZeneca and the University of Oxford.
Less than a week after we learned about it, the developers have admitted to a manufacturing error.
The error resulted from two different doses during the recently concluded phase III trial.
AstraZeneca and the University of Oxford described the vaccine as being 70% effective.
However, that number now seems a bit misleading but not necessarily in a bad way.