Meningitis - Minnesota Dept. of Health


There are many different bacteria and viruses that can cause meningitis. In most instances, it is more common for these viruses or bacteria to cause some other illness, such as an ear infection, pneumonia or other illness. It is not known why one individual develops meningitis when others exposed to the same virus or bacteria don't get as sick, or don't get sick at all.

Bacterial Meningitis

Some forms of meningitis may pose a risk for causing serious illness among close contacts. These include meningococcal meningitis and, in some specific circumstances, H. influenzae type b meningitis. In these instances, there are preventative actions that are recommended to protect close contacts.

The most common causes of bacterial meningitis:

More about bacterial meningitis

  • CDC: Bacterial Meningitis
    CDC: Frequently asked questions about bacterial meningitis (Meningococcal disease, Neisseria meningitidis).

Viral Meningitis

The most common causes of viral meningitis is a group of viruses known as enteroviruses, which includes coxsackieviruses and echoviruses.

Updated Friday, 03-Jun-2022 14:56:34 CDT