Meningitis is an inflammation of the protective membranes, called meninges, that cover the brain and spinal cord. This condition can be caused by infections from viruses, bacteria, or fungi. Symptoms often include fever, headache, and a stiff neck, and it can develop quickly, making it important to seek medical attention if these signs appear. There are different types of meningitis, with bacterial meningitis being the most severe and requiring immediate treatment. Vaccines are available to help prevent some forms of meningitis, such as those caused by Neisseria meningitidis and Streptococcus pneumoniae. Early diagnosis and treatment are crucial for a better outcome.