What is meningitis characterized as?

Meningitis is specifically characterized as an infection of the meninges, which are the protective membranes that cover the central nervous system (CNS), including the brain and spinal cord. This condition can be caused by various pathogens such as bacteria, viruses, fungi, or parasites, leading to inflammation of the meninges. The symptoms usually include fever, headache, neck stiffness, and altered mental status, which result from the inflammatory response in this critical area of the nervous system.

The other choices refer to different body systems or conditions. For instance, an infection of the liver would relate to hepatitis, while skin infections can range from superficial infections like impetigo to more serious conditions like cellulitis. An infection of the respiratory system pertains to illnesses such as pneumonia or bronchitis. Each of these conditions affects different organs and systems, making the correct identification of meningitis as an infection of the meninges crucial in understanding its implications and necessary medical response.