What question did this study set out to answer?

To identify risk factors for recurrent wheezing in infants with bronchiolitis from various viruses after 3 years.

Risk factors for recurrent wheezing following bronchiolitis: 3 yrs of follow-up

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Analysis identifies risk factors for recurrent wheezing in infants with bronchiolitis, highlighting viral infections and eosinophils.

To identify risk factors for recurrent wheezing in infants with bronchiolitis from various viruses after 3 years.
208 infants hospitalized with bronchiolitis were followed for 3 years.
Viral identification done using RT-PCR from nasal washes.
Demographic and clinical data collected via structured questionnaires.
34.9% of infants had recurrent wheezing at the 3rd year.
Risk factors included eosinophil counts > 400 cells/mm3, breastfeeding > 2 months, and bronchiolitis from Rhinovirus.
Recurrent wheezing prevalence varied by virus: 66.7% in Rhinovirus, 39.7% in Respiratory Syncytial Virus.

Cangiano et al. (2011) studied this question.

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