AstraZeneca’s building in Luton, Britain.Tim Ireland | Xinhua News Agency | Getty ImagesAstraZeneca and the University of Oxford are defending the results and methods used in their phase three vaccine trials on the back of criticism from experts in the U.S., stressing the “highest standards” were used and that “additional analysis will be conducted.” AstraZeneca shares are down by around 6% this week after questions were raised over its vaccine candidate, for which the company said combined results revealed it to be 70% effective. The figure came from combining a smaller group of people who received an unintentionally lower dose of the …
