Detection of Alloiococcus otitidis and three middle ear pathogens in the nasopharynx and the middle ear effusion of otitis-prone children

The three major pathogens of otitis media are Streptococcus pneumoniae, Haemophillus influenzae and Moraxella catarrhalis. Nasopharyngeal colonization of these pathogens is associated with the development of otitis media. A new species of bacterium, Alloiococcus otitidis, is detected with high frequ...

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Bibliographic Details
Published inInternational Congress series Vol. 1257; pp. 213 - 215
Main Authors Takada, Ryuta, Harimaya, Atsushi, Yamazaki, Norikazu, Himi, Tetsuo
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2003
Subjects
Alloiococcus otitidis
Nasopharynx
Otitis media
Otitis media
Nasopharynx
Alloiococcus otitidis
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Summary:The three major pathogens of otitis media are Streptococcus pneumoniae, Haemophillus influenzae and Moraxella catarrhalis. Nasopharyngeal colonization of these pathogens is associated with the development of otitis media. A new species of bacterium, Alloiococcus otitidis, is detected with high frequency in the middle ear effusions (MEE) by polymerase chain reaction (PCR), however, the association of A. otitidis in the nasopharynx with the development of otitis media is still unclear. To clarify this point, we investigated the frequency of A. otitidis in MEE and nasopharyngeal swabs (NPS) of otitis-prone children, with culture and PCR. The frequency of A. otitidis in MEE was higher than that of the three major pathogens. Although our data suggest that A. otitidis colonization of the nasopharynx is associated with otitis media, the frequency of A. otitidis was higher in MEE than in NPS. This suggests that A. otitidis colonization may involve other sites as well as the nasopharynx.
ISSN:0531-5131
1873-6157
DOI:10.1016/S0531-5131(03)01416-X