FDA advisers on Tuesday (June 28) will weigh in on what next-generation COVID-19 vaccines should be offered this fall, coming as the makers of the two messenger-RNA vaccines tout studies showing their respective vaccine recipes target the new variants. The White House recently drew money from the nation’s coronavirus testing fund so that it could start negotiating with vaccine makers for fall contracts before they sell their vaccines to other countries. The Vaccines and Related Biological Products Advisory Committee will...