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Colonization and Turnover of Streptococcus pneumoniae, Haemophilus influenzae , and Moraxella catarrhalis in Otitis‐Prone Children
Author(s) -
Yokota Shinichi,
Harimaya Atsushi,
Sato Kiyoshi,
Somekawa Yukihiro,
Himi Tetsuo,
Fujii Nobuhiro
Publication year - 2007
Publication title -
microbiology and immunology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.664
H-Index - 70
eISSN - 1348-0421
pISSN - 0385-5600
DOI - 10.1111/j.1348-0421.2007.tb03904.x
Subject(s) - moraxella catarrhalis , haemophilus influenzae , streptococcus pneumoniae , otitis , moraxella (branhamella) catarrhalis , microbiology and biotechnology , moraxella , etiology , biology , antibiotics , pasteurellaceae , immunology , bacteria , medicine , genetics
Recurrent otitis media are frequently intractable during childhood. It is unclear whether recurrent otitis media is caused by etiological bacteria colonization or by new infections. Streptococcus pneumoniae, Haemophilus influenzae and Moraxella catarrhalis were isolated from the nasopharynx of 7 otitis‐prone and 2 non‐prone children with recurrent otitis media. Plural bacterial species and strains were found in all children while affected by otitis media. The same strain was repeatedly isolated from all otitis‐prone children even after administration of antibiotics but was not from the non‐prone children. Antibiotic susceptibility did not differ significantly among the same repeatedly isolated strains. This pilot study suggests that the etiological bacteria tend to colonize and is hard to eliminate in otitis‐prone children.