The Chattooga County Health Department, 60 Farrar Drive, Summerville, will be closed Thursday, December 15, for mandatory staff-development training, according to health department Nurse Manager Cheryl Bandy.  “We wish we didn’t have to close for the day, but this training is required, and all health department employees must attend,” Bandy said.  “We regret any inconvenience this may cause any of our clients.”  For more information, call the Chattooga County Health Department at 706-857-3471.