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