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

Moncef Slaoui, 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. https://www.cnn.com/2020/07/30/health/operation-warp-speed-moncef-slaoui/index.html