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  • Title: Relationship between nasopharyngeal colonization and the development of otitis media in children. Tonawanda/Williamsville Pediatrics.
    Author: Faden H, Duffy L, Wasielewski R, Wolf J, Krystofik D, Tung Y.
    Journal: J Infect Dis; 1997 Jun; 175(6):1440-5. PubMed ID: 9180184.
    Abstract:
    Streptococcus pneumoniae, nontypeable Haemophilus influenzae, and Moraxella catarrhalis are the predominant bacteria associated with otitis media. A cohort of 306 infants was followed from birth through 12 months to determine frequency and duration of colonization and risk of acute otitis media (AOM) and otitis media with effusion (OME). M. catarrhalis was the most common bacterium isolated. Infants colonized at < or = 3 months of age were at increased risk of AOM and OME. Early colonization with M. catarrhalis revealed the greatest risk (relative risk [RR] = 1.24), especially for OME (RR = 1.57). There was a strong relationship between the frequency of colonization and OM (r = .37, P < .001,) for each pathogen. Although S. pneumoniae, nontypeable H. influenzae, and M. catarrhalis are part of the normal nasopharyngeal flora during infancy, an increased rate of colonization may identify a subpopulation of children that is at increased risk of OM.
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