AstraZeneca says updated COVID vaccine report still shows it's highly effective

AstraZeneca insisted late Wednesday that its COVID-19 vaccine is strongly effective even after including additional illnesses in its disputed U.S. study, the latest in an extraordinary public rift with American officials.

In a late-night press release, the British drug maker said it had recalculated data from that advanced trial and concluded the vaccine is 76% effective in preventing symptomatic COVID-19, instead of the 79% it had claimed earlier in the week. Just a day earlier, an independent panel that oversees the study had accused AstraZeneca of cherry-picking data to tout the protection offered by its vaccine. The panel, in a harsh letter to the company and to U.S. health leaders, said the company had left out some COVID-19 cases that occurred in the study, a move that could erode trust in the science.