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.
Tuberculosis (TB) is a serious bacterial disease caused by Mycobacterium, a group of bacteria that usually affects the respiratory system. Animals infected with TB may not show signs for years, but animals that appear healthy may still be capable of transmitting infection to other animals.ovine TB is a chronic disease that has affected animal health throughout recorded history and is capable of infecting most mammals. For more information see our Bovine Tuberculosis Information for Livestock Producers Factsheet.