Share +. Text A A A. Rheumatoid arthritis (RA) is an autoimmune disease where the body's immune system attacks normal joint tissues, causing inflammation of the joint lining. This inflammation of the joint lining (called the synovium) can cause pain, stiffness, swelling, warmth, and redness.ext A A A. Rheumatoid arthritis (RA) is an autoimmune disease where the body's immune system attacks normal joint tissues, causing inflammation of the joint lining.
Tuberculosis. Tuberculosis (TB) is an infectious disease caused by a bacterium that usually attacks the lungs. TB is spread through the air from one person to another. The bacteria are put into the air when a person with active TB disease of the lungs or throat coughs, sneezes, speaks, or sings.
Three Parts:Knowing the Risk FactorsRecognizing the Signs and Symptoms of Respiratory TBGetting Tested for TBCommunity Q&A. Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis and spread from person to person through the air. TB usually affects the lungs (typically the primary site of inoculation), though it can affect any organ. In the latent form, the bacteria remains dormant with no signs or symptoms, whereas the active form shows signs and symptoms. The vast majority of TB infections remain latent. If left untreated or treated improperly, TB can kill, so you must be able to recognize the signs of respiratory tuberculosis.