The interaction between respiratory viruses and pathogenic bacteria in the upper respiratory tract of asymptomatic Aboriginal and non-Aboriginal children
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Jacoby, Peter
Taylor, Amanda
Harnett, Gerry
Bowman, Jacinta
Riley, Thomas V.
Reuter, Kelly
Smith, David W.
Lehmann, Deborah
Aalberse, J.
Alpers, K.
Arumugaswamy, A.
Beissbarth, J.
Bonney, P.
Bonney, R.
Brestovac, B.
Carter, J.
Carville, K.
Coates, H.
Coleman, S.
Cripps, Allan
Dorizzi, L.
Dunn, D.
Elsbury, D.
Edwards, E.
Evans, J.
Finucane, J.
Firth, M.
Forrest, A.
et al.
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Abstract
Background: Associations between respiratory viruses and the bacterial pathogens Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis may be important in the pathogenesis of otitis media (OM). However, data on asymptomatic identification rates of respiratory viruses are limited, particularly in Indigenous populations, who suffer a high burden of OM. Methods: We describe the identification of respiratory viruses alone and in combination with pathogenic OM bacteria in 1006 nasopharyngeal aspirates collected from asymptomatic Aboriginal and non-Aboriginal children in a longitudinal community-based cohort study in rural Western Australia. Results: Viruses were identified in 42% of samples from Aboriginal and 32% from non-Aboriginal children. Rhinoviruses were the most frequently identified virus with higher identification rates in Aboriginal (23.6%) than non-Aboriginal children (16.5%; P = 0.003). Rhinoviruses were associated with H. influenzae (odds ratio [OR], 2.24; 95% CI, 1.24-4.07 for Aboriginal children) and M. catarrhalis (OR, 1.94; 95% CI, 1.05-3.57 for Aboriginal children). Adenoviruses were positively associated with H. influenzae in Aboriginal children (OR, 3.30; 95% CI, 1.19-9.09) and M. catarrhalis in non-Aboriginal children (OR, 5.75; 95% CI, 1.74-19.23), but negatively associated with S. pneumoniae in Aboriginal children (OR, 0.39; 95% CI, 0.18-0.84). Conclusions: We found a high identification rate of rhinoviruses and adenoviruses in asymptomatic children. The associations between these viruses and OM bacteria have implications for preventive strategies targeted at specific pathogens.
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Pediatric Infectious Disease Journal
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29
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6
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© 2010 Lippincott Williams & Wilkins. This is a non-final version of an article published in final form in the Pediatric Infectious Disease Journal, Vol. 29(6), pp. 540-545. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal link for access to the definitive, published version.
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Immunology not elsewhere classified
Paediatrics and Reproductive Medicine
Public Health and Health Services