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The Flu
Alternate Names : Flu, Influenza A, Influenza B, Influenza C
Pictures & Images
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Normal Lung Anatomy
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Within the respiratory system, air is first inhaled through the nose or mouth into the pharynx. From the pharynx, air is drawn through the larynx and trachea to make its way to the lungs.
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Influenza
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Influenza is a viral infection of the respiratory tract that causes coughing, breathing difficulty, fever, headache, muscle aches and weakness. The virus is spread from person to person by inhaling infected droplets from the air.
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Jump to another section
• Definition
• The Flu Overview, Causes, & Risk Factors
• The Flu Symptoms & Signs
• The Flu Prevention
• The Flu Diagnosis & Tests
• The Flu Treatment
• The Flu Prognosis
• The Flu Complications
• Calling Your Health Care Provider
• Pictures & Images
Topics that might be of interest to you Diseases & Conditions
• Encephalitis
• Pneumonia
Tests & Exams
• CBC
• Chest X-Ray
Other Topics
• Breathing Difficulty
• Cough
• Fatigue
• Fever
• Headache
• Malaise
• Muscle Aches
• Nasal Congestion
• Sore Throat
• Sweating - Excessive
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