coronavirus September 17, 2021 7:19 am Entire 4th Grade Class Quarantines in Bridgewater An entire fourth grade class is in quarantine after testing positive for coronavirus in Bridgewater, and school administrators say the highly contagious delta variant is to blame. US & World Videos 2:40 Cambridge bans right turns on red lights 2:23 Friend of John O'Keefe testifies in Karen Read trial 1:57 Tensions escalate as protests across Mass. colleges continue 2:05 MIT students suspended amid pro-Palestinian protests 0:21 Man arrested in Centerville stabbing that sent victim to hospital