The early symptoms of avian influenza are remarkably similar to influenza (the "flu"). CT scan of chest showing consolidation of the left upper lobe (right side of image) from Legionnaire's disease. Chest x-ray showing bilateral lower lobe infiltrates consistent with diagnosis of Legionnaire's disease.
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Legionellosis (Legionnaires' Disease)  Information for adults

Picture of Legionellosis (Legionnaires' Disease): The early symptoms of avian influenza are remarkably similar to influenza (the "flu"). Divider line
The early symptoms of avian influenza are remarkably similar to influenza (the "flu").
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Signs and Symptoms
Signs and symptoms of legionellosis usually develop within 14 days of exposure to the bacterium. The symptoms are not very different from many other illnesses, so legionellosis can be difficult to diagnose. The symptoms usually last for less than a week and get better within 5 days.

Symptoms of legionellosis include:
  • Fever
  • Chills
  • Cough, sometimes with blood
  • Feeling generally weak and achy (malaise)
  • Headache
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Last Modified: 22 Dec 2008
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