Most U.S. cases have been reported since Oct. 4, analysis finds. U.K. hospitals will receive first batch of the vaccine. Latest COVID news.
Author: Jessica Flores, Ryan W. Miller and Jorge L. Ortiz, USA TODAY
Coronavirus updates: Trump may overrule FDA; Missouri governor, wife test positive; Fauci, Sen. Rand Paul spar over pandemic response
Johnson & Johnson begins final stage of its COVID-19 vaccine candidate trial. Health experts tell Senate panel safety is paramount. Latest COVID news.