News Snapshot:
which have reported strong results in trials over the past week. Pfizer, which is collaborating with German firm on a vaccine, said Wednesday it plans to ask the U.S. Food and Drug Administration for authorization within days after trials in the U.S. and elsewhere showed its vaccine to be 95% effective. Moderna said this week that preliminary clinical trial results showed its vaccine to be 94.5% effective. The lack of evidence from leading Chinese vaccine makers such as Sinopharm suggests that their clinical trials have moved slowly, scientists said, possibly because the countries where trials are taking place have seen...
