Students and staff in Merrimack Valley School District will wear masks indoors when COVID spread in Merrimack County is “substantial,” the school board decided Monday, in a change based on updated state guidance.In an emergency board meeting held in.
MV to revisit mask policy concordmonitor.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from concordmonitor.com Daily Mail and Mail on Sunday newspapers.