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Bronchitis (Acute)

What causes acute bronchitis?

The most common causes of acute bronchitis are viral. There is no "bronchitis virus” as many different types of viruses can cause bronchitis. The main genera of viruses that cause acute bronchitis include:

Many people develop fairly mild symptoms of acute bronchitis so often that the exact virus that caused the infection is never determined.

Bacteria are less common causes of acute bronchitis. Bacterial causes of the disease (bacterial bronchitis) include:

Other irritants (for example, tobacco smoke, chemicals, etc.) may irritate the bronchi and cause acute bronchitis. Consequently, bronchial or bronchitis infections are not the only cause of acute bronchitis.

Reviewed on 10/20/2016

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