List of musculoskeletal disorders. Ankylosing Spondylitis. Ankylosing Spondylitis is a chronic, progressive autoimmune disease that involves the joints and the spine. Although some people experience symptoms in many parts of the body, the main site of this disorder is the lower back.
Location of Saint Kitts and Nevis. The islands of St. Kitts and Nevis are positioned in both the northern and western hemispheres. Located in the eastern Caribbean, the islands are surrounded by the Caribbean Sea and the Atlantic Ocean.
St Kitts and Nevis has just 261 square kilometers (104 sq mi) of land, which ranks 207th in the world, and a fairly high population density of 164 people per square kilometer (424/sq mi), which is the 64th highest in the world. The largest city and capital is Basseterre, with a population of 15,500.