Two Louisiana high school students test positive for TB

According to state health officials, two out of 180 students at Byrd High School in Shreveport, Louisiana, have tested positive for exposure to tuberculosis after another student became sick.
The teens tested positive for latent TB infection, which means that at some point they were exposed to the bacteria, Todd Cummings of the regional office of the Department of Health and Hospitals said, KTBS reports.
Officials said that the students have not been diagnosed with full-blown active TB and are not contagious. They will undergo chest x-rays this week to rule out active TB and will be treated with an antibiotic for six months if they have it. The testing, which was done last week, also included the testing of several teachers, according to school system officials.
According to the Centers for Disease Control and Prevention, TB is caused by the bacterium Mycobacterium tuberculosis, a bacteria that typically attacks the lungs but can attack any part of the body, including the kidney, spine and brain. The disease can be fatal if it is not treated properly.
Tuberculosis is spread through the air from one person to another when a person with the active form of the disease coughs, sneezes, speaks or sings. It is not spread by shaking someone's hand, sharing food or drink, touching bed linens or toilet seats, sharing toothbrushes or kissing.