A suburban hospital has agreed to a $7.5 million settlement with the family of a boy who at age 2 suffered permanent brain damage while awaiting treatment for bacterial meningitis. The settlement brings the family’s total to $10.9 million following two earlier settlements with other defendants. In December 2008, Wendy Warmowski called her 2-year-old son’s pediatrician, then took her son to the emergency room at Sherman Hospital in Elgin. At the hospital, triage staff quickly noticed symptoms of …