Childhood immunizations in the United States diphtheria patients die. Without treatment as many as half the patients can die from the disease. Pertussis is a highly contagious disease that is caused by the bacteria "Bordetella pertussis." The bacteria clings to cilia in the lungs and releases a toxin that damages the cilia and causes inflammation in the respiratory tract. Many infants are infected by older siblings or caregivers that don't even know they have the disease. The bacteria is spread through respiratory secretions, often through coughing or sneezing, or just from breathing in the bacteria while around someone who is infected. Unfortunately, the effectiveness of the
Alexander disease older patients, bulbar or pseudobulbar symptoms and spasticity predominate. Symptoms of the adult form may also resemble multiple sclerosis. No more than 500 cases have been reported. Alexander disease Alexander disease is one of a group of neurological conditions known as the leukodystrophies, which are ailments caused by anomalies in the myelin, which protects nerve fibers in the brain. According to the National Institute of Neurological Disorders and Stroke, the destruction of white matter is accompanied by the formation of Rosenthal fibers—abnormal clumps of protein that accumulate in astrocytes in the brain. The most common type of Alexander disease is