Viruses Viral illnesses are known to trigger depression.
The culprits include influenza, glandular fever,
hepatitis and encephalitis. They make you feel awful,
causing debilitating symptoms like fever, extreme
tiredness, pain, headache, nausea and general weakness.
Recovery may take weeks or months, not days.
Development of depression is common during a viral
illness and it may extend well beyond the physical
recovery.
