FORT WAYNE, Ind. (WOWO): The Fort Wayne-Allen County Health Department is seeing more tuberculosis cases lately.

The department announced during a media event Monday that the department has sent out around 400 letters to residents who may have been exposed, according to the Journal-Gazette.

Usually, the health department sees about six new cases of tuburculosis every year, but the department’s already seen seven new cases in 2016, according to Health Commissioner Deborah McMahon.

There are two stages of tuberculosis: the disease stage and infection stage.

If you’re in the disease stage, you’re contagious and will show symptoms like cough, fever, night sweats, weight loss and others.