Which bacteria are involved in recurrent tonsillitis?

Updated: Apr 06, 2020
  • Author: Udayan K Shah, MD, FACS, FAAP; Chief Editor: Arlen D Meyers, MD, MBA  more...
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A polymicrobial flora consisting of both aerobic and anaerobic bacteria has been observed in core tonsillar cultures in cases of recurrent pharyngitis, and children with recurrent GABHS tonsillitis have different bacterial populations than children who have not had as many infections. Other competing bacteria are reduced, offering less interference to GABHS infection. Streptococcus pneumoniae, Staphylococcus aureus, and Haemophilus influenzae are the most common bacteria isolated in recurrent tonsillitis, and Bacteroides fragilis is the most common anaerobic bacterium isolated in recurrent tonsillitis.

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