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What causes coma, nausea and stuffy nose? 1 possible condition

See a list of possible causes in order from the most common to the least.



This condition is considered a medical emergency. Urgent care may be required.

Encephalitis is inflammation of the brain tissue usually caused by viral infection. Mild symptoms include fever, headache, and vomiting. Seizure, unconsciousness, and high fever are severe signs.

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