Lungs
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Influenza – Flu
Influenza – Definition The flu (also called influenza) is a viral infection. It affects the respiratory system. It can cause…
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Common Cold
(Viral Rhinitis) Common cold – Definition The common cold is an infection that can irritate your upper respiratory tract (nose…
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Allergic Rhinitis
(Hay Fever; Seasonal Allergies) Allergic rhinitis – Definition Allergic rhinitis is the set of symptoms that occurs when you breathe…
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Cystic Fibrosis – CF
Cystic Fibrosis – Definition Cystic fibrosis (CF) is an inherited disease. The defect occurs in epithelial (lining) cells. These cells…
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