Upper respiratory tract infection increase otitis media of child before the age of 1

A study recently published in the Journal Pediatrics noting that the respiratory viral infections, bacteria colonization and lack of breastfeeding increase the risk of acute otitis media among children before the age of 1.

This study evaluated the upper respiratory tract infection (URI) and the incidence of complications, including acute otitis media (AOM) and lower respiratory infections (LRI), evaluated the bacteria - viruses affect the reaction, as well as genetic and environmental risk factors for the development of acute otitis media.

The researchers followed up from birth to age 1 AOM Development 367 healthy babies. Collection 1 year old, 6-month and nine-month-old nasopharyngeal samples valuation bacteria and PCR studies. In any diagnosis of viral URIs when samples are collected nasopharynx.

Data show that 305 subjects occurs 887 times URIs, 143 babies occurred 108 cases AOM. Baby occur an average of 4.7 times per year occur AOM URIs, without the AOM infants per year and 2.3 URIs (P <0.002). The study found children with AOM pathogens value higher than that of children without AOM (P <.005). The results also show that breastfeeding can reduce the risk of children URIs and AOM (P <0.05).

The author, pediatrics and pathologist Chonmaitree and her colleagues from Medicine Department of Pediatrics and University of Texas wrote that moraxella catarrhalis with or without other bacteria all changed the risk of URI (HR = 6.1; 95% CI, 4.04-9.23) and AOM (HR = 1; 95% CI, 0.62-1.6). Whether with viral infection or not, Moraxella catarrhalis infections increase the risk of URI. "These complex viruses - bacteria reactions may provide clues of pathogenesis of URI and AOM, which requires a larger study sample." David Costill wrote.

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