AstraZenec says its shot will be effective against COVID-19 variant

AstraZeneca chief executive Pascal Soriot also told the Sunday Times that researchers developing its vaccine have figured out a “winning formula” making the jab as effective as rival candidates.

Some have raised concern that the AstraZeneca vaccine, which is being developed with Oxford University, may not be as good as the one made by Pfizer already being distributed in the U.K. and other countries. Partial results suggest that the AstraZeneca shot is about 70% effective for preventing illness from coronavirus infection, compared to the 95% efficacy reported by Pfizer and its German partner BioNTech.