coronavirus March 18, 2020 4:40 pm Reaction to Closure of Border With Canada Amid Coronavirus Outbreak The leaders of both the U.S. and Canada announced Wednesday they have agreed to temporarily close the border between the countries in an effort to slow the spread of COVID-19. US & World Videos 2:04 Celtics fans ready for Boston to face Dallas in NBA Finals 2:07 New details after police fatally shoot man in Nashua, NH 1:30 Special Olympics Massachusetts torch run arrives in Fenway 2:40 First permanent pride crosswalk installed in Boston 0:37 Orcas spotted off coast of Chatham