
Meningitis - Symptoms and causes - Mayo Clinic
Oct 17, 2024 · Viral infections are the most common cause of meningitis in the United States, followed by bacterial infections and, rarely, fungal and parasitic infections. Because bacterial infections can …
Meningitis: Causes, Symptoms, Diagnosis & Treatment
Oct 27, 2025 · Meningitis makes the protective layers surrounding your brain and spinal cord swell. Bacteria, viruses, fungi, parasites and noninfectious conditions can cause meningitis. Common …
Meningitis: Symptoms, Causes, Types, Treatment, Risks, Vaccine - Healthline
Apr 16, 2025 · Meningitis can occur due to a viral, bacterial, or fungal infection and requires emergency medical treatment. Symptoms may include stiff neck, sleepiness, and headache, among …
How do you get meningitis? Risk factors, causes & symptoms
But parasites, fungi, certain medicines and medical conditions can also cause meningitis. And symptoms, how it spreads and who is at risk varies with the type of meningitis. Viral meningitis is …
Meningitis - Johns Hopkins Medicine
Meningitis is a disease caused by an inflammation of the meninges, the membranes that surround the brain and spinal cord. It's usually caused by a virus, although it can be caused by bacteria, a fungus, …
About Bacterial Meningitis | Meningitis | CDC
Sep 9, 2025 · Leading U.S. causes vary by risk factors and include: Mycobacterium tuberculosis, which causes tuberculosis or TB, is a less common cause. People with bacterial meningitis usually have …
Meningitis - World Health Organization (WHO)
Apr 1, 2025 · Most bacteria that cause meningitis, including meningococcus, pneumococcus and Haemophilus influenzae, are carried in the human nose and throat. They are spread from person to …
Causes - Meningitis Progress Tracker
Many different bacteria can cause meningitis. Four of the most common causes of bacterial meningitis are streptococcus pneumoniae (pneumococcal), neisseria meningitidis (meningococcal), group B …
Meningitis - National Institute of Neurological Disorders and Stroke
Dec 29, 2025 · It is caused by the bacteria Streptococcus pneumoniae, which also causes pneumonia, blood poisoning (septicemia), and ear and sinus infections. Pneumococcal meningitis is …
Meningitis - Wikipedia
The inflammation may be caused by infection with viruses, bacteria, fungi or parasites. [12] . Non-infectious causes include malignancy (cancer), subarachnoid hemorrhage, chronic inflammatory …