sputum smear

      By Yvette Naudé, University of Pretoria   Detecting tuberculosis early could play a significant role in eradicating the world’s most deadly infectious disease. The World Health Organization says 1.5 million people die from this devastating disease each year. People infected with Mycobacterium tuberculosis, the TB bacteria that attack the lungs, often do not know that they have it until their symptoms become severe. Two out of every […]