A HIGH SCHOOL IN SACRAMENTO COUNTY IS AT THE CENTER OF AN OUTBREAK OF TUBERCULOSIS. 5 STUDENTS AT GRANT UNION HIGH SCHOOL HAVE CONTRACTED ACTIVE CASES OF TB, AND NOW 4 RELATIVES (OF THE FIRST STUDENT DIAGNOSED WITH TB (EARLIER THIS YEAR)) HAVE ALSO TESTED POSITIVE. SYMPTOMS OF ACTIVE TB INCLUDE A PERSISTENT COUGH AND FEVER…AND IT IS SPREAD THROUGH THE AIR. ONLY ACTIVE TB IS CONTAGIOUS.