What causes acute bronchitis?

Updated: Jul 22, 2021
  • Author: Jazeela Fayyaz, DO; Chief Editor: John J Oppenheimer, MD  more...
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Most acute bronchitis cases in healthy individuals do not have an identifiable cause; therefore, viral etiology is presumed. Nonetheless, some studies implicate bacterial pathogens in up to 25% of cases. [6]

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