what is the meaning of bronchitis
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In bronchitis, cells that line the bronchi become infected. The infection usually starts in the nose or throat and travels to the bronchial tubes. When the body tries to fight the infection, it causes the bronchial tubes to swell. This causes you to cough.
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Bronchitis, inflammation of all or part of the bronchial tree (the bronchi), through which air passes into the lungs.
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