TB is caused by bacteria and it most often affects the lungs. TB is spread through the air when people cough, sneeze or spit. A person needs to inhale only a few germs to become infected. Every year, 10 million people fall ill with tuberculosis (TB). Despite being a preventable and curable disease, 1.5 million people die from TB each year – making it the world’s top infectious killer. Learn more on how to protect yourself and your loved ones at – https://www.cdc.gov/tb/worldtbday/default.htm