Health-care workers in the United States could get the first doses of a coronavirus vaccine in about a month.
Pfizer announced Wednesday that it planned to submit an application to the Food and Drug Administration for emergency use “within days” after a final data analysis found its vaccine was 95% effective in preventing Covid-19 and, in addition, appeared to fend off severe disease in patients who contracted the virus. The news follows Moderna’s announcement Monday that its vaccine was 94.5% effective.
