is meningitis a bacteria or virus
About Meningitis. Meningitis is most often caused by a bacterial infection. It also may be caused by a virus, fungal infection, parasite, a reaction to certain medications or medical treatments, a rheumatologic disease such as lupus, some types of cancer, or a traumatic injury to the head or spine.bout Meningitis. Meningitis is most often caused by a bacterial infection. It also may be caused by a virus, fungal infection, parasite, a reaction to certain medications or medical treatments, a rheumatologic disease such as lupus, some types of cancer, or a traumatic injury to the head or spine.