Differentiate between the causes of meningitis. Include the different forms Meningitis and discuss the potential severity of disease. 

Meningitis occurs when the membranes (meninges) that surround the brain and spine are inflamed. The cause of meningitis is a wide range, from bacteria, viruses, or fungi to chemical irritation caused by drugs and toxins. It may also be due to physical trauma, such as a head injury, or immune system problems. The severity of the infection depends on which agent caused it.

The bacterial meningitis can be considered more serious than the other types of meningitis, as it may cause severe complications like hearing loss or brain damage. These are typically spread via contact with fluids from the body, like saliva or an infected site. While viral meningitis is less severe, it can still be hospitalized in order to provide supportive care to patients while their immune system fights off the virus. Insect bites and contaminated water/food are the most common ways to contract this form.

When fungi infect the body, either through direct infection (inhalation), or indirect (infection elsewhere), a bacterial meningitis can occur. Chemical meningitis can be caused by certain toxic chemicals or medications. It is important to seek medical treatment as soon as possible to minimize symptoms and avoid further damage. Early diagnosis and treatment is key to a complete recovery, regardless of the type of meningitis contracted.