What are the key differences between viral meningitis and bacterial meningitis, and how can one distinguish between the two?

Viral meningitis is usually less severe than bacterial meningitis and often resolves on its own. Bacterial meningitis is more serious and requires immediate medical treatment with antibiotics. To distinguish between the two, a doctor may perform a spinal tap to analyze the cerebrospinal fluid for the presence of bacteria or viruses. Symptoms such as fever, headache, and neck stiffness are common in both types of meningitis, but bacterial meningitis may also cause more severe symptoms like confusion, seizures, and coma.