Teratomas occur most frequently in the ovary, where they are usually benign and form dermoid cysts; in the testis, where they are usually malignant; and, uncommonly, in other sites, especially the midline of the body. Synonym(s): teratoid tumor.
Meningococcal disease is an infection caused by a strain of bacteria called Neisseria meningitidis. This invastive bacteria is one of the leading causes of bacterial meningitis in children aged 2 to 18 in the U.S.Meningococcal disease can include meningitis -- a serious, potentially life-threatening inflammation of the membranes covering the brain and spinal cord -- and/or a life-threatening blood infection.ortunately, meningococcal disease is preventable, and the key to prevention is the meningococcal vaccine. Here is information about the vaccine that you can use to help protect yourself and your family from meningococcal disease.
Meningitis is inflammation of the thin tissue that surrounds the brain and spinal cord, called the meninges. There are several types of meningitis. The most common is viral meningitis. You get it when a virus enters the body through the nose or mouth and travels to the brain. Bacterial meningitis is rare, but can be deadly. It usually starts with bacteria that cause a cold-like infection. It can cause stroke, hearing loss, and brain damage. It can also harm other organs. Pneumococcal infections and meningococcal infections are the most common causes of bacterial meningitis.