tbMore than 30 Lynn Community Health Center employees and 800 patients are being tested to determine if they were exposed to tuberculosis after center doctors confirmed a case. Center Director Lori Berry says after confirming the single positive test for tuberculosis in a male health care worker around Labor Day, center medical workers contacted and tested employees as well as patients ‘‘having sufficient exposure to warrant testing.’’ City Health Director MaryAnn O’Connor tells The Daily Item the identified case at the center is ‘‘not a reason to panic’’ and said people should not stay away from clinic. The Center for Disease Control’s website describes tuberculosis as bacteria ‘‘that usually attack the lungs’’ but can attack other parts of the body, and if not treated properly can be fatal. Boston.com