Tuberculosis (TB) is an infection caused by a bacterium called Mycobacterium tuberculosis. This bacterium usually attacks the lungs (pulmonary TB) and this is the most common type of TB. However, the TB bacteria can also spread via blood and attack any part of the body (extrapulmonary TB) like bones, spine, brain, lymph nodes, intestines, kidneys, and
AIDS (acquired immunodeficiency syndrome) is caused by infection with HIV (Human Immunodeficiency Virus). HIV is of two types 1 and 2. Type 2 is less infective and virulent, shows less vertical (mother to child) and heterosexual spread, has lower genetic diversity and prevalence (mainly in West Africa), and a much longer time to development of