TB cases on the rise in Alabama after decade long steady decline

Tuberculosis cases in the state are on the rise, after a decade of a fairly steady decline.{} Last year, the state had 161 TB cases.{} That's a 10% increase from 2010.{} There's no clear cause for the increase, but health officials say they are watching the numbers closely.{} TB is caused by a bacterium called mycobacterium tuberculosis, which attacks the lungs.