//Operation Warp Speed leader says he expects coronavirus vaccine to be highly effective, ‘in the 90%’ range
CNN

Operation Warp Speed leader says he expects coronavirus vaccine to be highly effective, ‘in the 90%’ range

The head of the government’s effort to develop a vaccine against Covid-19 says he expects the vaccine to have efficacy rates “in the 90%” range — but that there might not be enough vaccine available for all Americans until the end of next year.