Nation US ‘on track’ to have enough vaccine for all by end of July; expanded testing planned for schools: Latest COVID-19 updates February 17, 2021 John Bacon, Grace Hauck and Jorge L. Ortiz, USA TODAY Comments Off on US ‘on track’ to have enough vaccine for all by end of July; expanded testing planned for schools: Latest COVID-19 updates Winter weather is causing issues and delaying shots as the U.S. continues to ramp up vaccinations across the nation. Latest COVID-19 news.