Coronavirus December 6, 2021 6:08 pm New COVID Test Rules Go Into Effect for Int'l Air Travel New restrictions are in effect for international travelers arriving to the U.S. amid the rise of a new COVID variant, omicron. US & World Videos 2:27 Mother speaks out after school shooting threat in Milton 0:39 Police respond to incident in Whitinsville 2:31 Billerica police sergeant killed in crash honored at funeral 2:05 MIT monitors pair of opposing protests on campus 3:41 Cool air to linger over Boston into the weekend
