Newsletter Bronchiolitis Bronchiolitis is the commonest serious respiratory infection of infancy: 2–3% of all infants are admitted to hospital with the disease each year during annual winter epidemics; 90% are aged 1–9 months (bronchiolitis is rare after 1 year of age). Respiratory syncytial virus (RSV) is the pathogen in 80% of cases. The remainder are […]