The materials were being flushed to the sanitary sewer while workers at the Center Water Plant at Okoboji cleaned sand filters that help clear the water before it is sent to taps. The material leaked out of a manhole when a pipe clogged. Sewage-system workers vacuumed several hundred gallons from a street and flushed the sewer. The surrounded area was treated with lime to kill bacteria. The children and parents are not in any immediate danger and should continue going to school on a regular basis.
Tuberculosis is a bacterial infection that can infect a person's lungs or other parts of the body.
People with active TB may have symptoms including an ongoing cough, fevers, constant exhaustion and a loss of appetite.