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. 2000 Aug;126(8):1011-3.
doi: 10.1001/archotol.126.8.1011.

In vitro bacterial interference in the nasopharynx of otitis media-prone and non-otitis media-prone children

I Brook  1 , A E Gober
Affiliations

In vitro bacterial interference in the nasopharynx of otitis media-prone and non-otitis media-prone children

I Brook et al. Arch Otolaryngol Head Neck Surg. 2000 Aug.

Abstract

Objective: To compare the frequency of recovery of potential pathogens and aerobic- and anaerobic-interfering bacteria in the nasopharynx of otitis media-prone (OMP) with that in non-OMP (N-OMP) children.

Patients and methods: Nasopharyngeal cultures were obtained from 20 OMP and 20 N-OMP children. Potential pathogens and aerobic and anaerobic bacteria with interfering capabilities against these organisms were identified.

Results: Eighteen potential pathogens were isolated from 12 of the 20 OMP children, and 9 were recovered from 5 of the 20 N-OMP children (P<.05). Fifty-eight aerobic and anaerobic isolates with interfering capability against 4 potential pathogens were recovered from 5 of the OMP group, and 139 from 17 of the N-OMP group (P<.05). These interfering organisms included alphahemolytic streptococci, nonhemolytic streptococci, Prevotella species, and Peptostreptococcus species.

Conclusion: The nasopharyngeal flora of N-OMP children contains more aerobic and anaerobic organisms with interfering capability and less potential pathogens than that of OMP children.

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