What is the most common bacteria involved in the etiology of acute sialadenitis?

Updated: May 12, 2020
  • Author: Adi Yoskovitch, MD, MSc; Chief Editor: Arlen D Meyers, MD, MBA  more...
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The most common organism is Staphylococcus aureus. Other bacterial organisms include Streptococcus viridans, Haemophilus influenzae, Streptococcus pyogenes, and Escherichia coli. The infection is often the result of dehydration with overgrowth of the oral flora. The most common causes are postoperative dehydration, radiation therapy, and immunosuppression (eg, diabetes mellitus, organ transplant, chemotherapy, human immunodeficiency virus).

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