The primary risk factors associated with<unk><unk>  encephalitis are exposure to endemic environments and the consumption of unpasteurized dairy products. More severe infections have been reported in individuals over the age of 50 years. Certain antibiotic treatment options have bee proven to activate the virus while others have caused its deactivation.
Tick-borne encephalitis risk factors
Japanese encephalitis risk factors
St. Louis encephalitis risk factors
Viral encephalitis risk factors
Hantavirus infection risk factors
Bacterial meningitis risk factors
Marburg hemorrhagic fever differential diagnosis
Viral meningitis risk factors