What causes acute bronchitis?

    Last Updated: October 25, 2023

    Viruses (e.g., respiratory syncytial virus (RSV), enterovirus, influenza A and B, parainfluenza, coronavirus, and rhinovirus) cause approximately 90% of acute bronchitis cases. Bacterial infections are relatively uncommon, accounting for only 1%–10% of cases.[1][2]

    References

    1. ^Harris AM, Hicks LA, Qaseem A, High Value Care Task Force of the American College of Physicians and for the Centers for Disease Control and PreventionAppropriate Antibiotic Use for Acute Respiratory Tract Infection in Adults: Advice for High-Value Care From the American College of Physicians and the Centers for Disease Control and PreventionAnn Intern Med.(2016 Mar 15)
    2. ^Kinkade S, Long NAAcute Bronchitis.Am Fam Physician.(2016-Oct-01)