https://www.medicinenet.com/bronchitis_acute/article.htm
Acute Bronchitis Contagious, Symptoms, Antibiotics, Treatment
The medical definition of acute bronchitis is a cough lasting five or more days suggesting acute bronchitis as a cause. Learn the causes, symptoms, contagious...
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https://www.webmd.com/lung/understanding-bronchitis-basics
Bronchitis (Acute and Chronic): Symptoms, Causes & Treatment
Bronchitis is inflammation of the lining of your lungs. Learn more about the symptoms, causes, diagnosis, treatment, and prevention of bronchitis.
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