Encephalitis is inflammation of the brain usually caused by a viral infection. Severe cases can cause brain damage, even death.
Fever, headache and stiff neck are common signs and symptoms of meningitis — an infection of the membranes and fluid surrounding the brain and spinal cord.
Coma is often a complication from a severe brain injury that leaves a person unconscious and unresponsive. Many people recover from this condition.
Fatigue can signal many things. Here are some tips to help you decipher why you're wiped out and to regain your energy.
Most headaches aren't caused by a serious illness, but some could be a sign of a life-threatening condition.
Tests and diagnosis
Lumbar puncture (spinal tap) — Overview covers definition, risks and results of this procedure.
MRI uses a magnetic field and radio waves to create detailed images of the organs and tissues within your body.
Dec. 18, 2012
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- West Nile virus. National Institute of Allergy and Infectious Diseases. http://www.niaid.nih.gov/topics/westnile/understanding/pages/what.aspx. Sept. 6, 2012.
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- Updated information regarding insect repellants. Centers for Disease Control and Prevention. http://www.cdc.gov/ncidod/dvbid/westnile/RepellentUpdates.htm. Accessed Sept. 7, 2012.
- Anderson CF (expert opinion). Mayo Clinic, Rochester, Minn. Sept. 10, 2012.
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