BRONCHIOLITIS

This study will observe 65 infants and toddlers hospitalized with bronchiolitis, a common lung infection, to identify factors that make the illness more severe. Researchers will collect information from parents and medical records, including family history, symptoms, and treatmen…

This study looks at how the bacteria in the gut might influence how sick children get from RSV, a common virus that can cause severe breathing problems. Researchers will compare the gut bacteria and immune responses of 250 Vietnamese children with mild versus severe RSV infection…

This study follows 270 preterm babies (born before 32 weeks) from birth to age 3 to see if the germs in their noses can predict serious lung problems like bronchopulmonary dysplasia and later asthma. Researchers will collect nasal swabs, stool samples, and some blood and milk sam…

This study will look back at medical records of 1,000 infants under 12 months who were hospitalized with bronchiolitis. Researchers want to see how well the drug nirsevimab prevents RSV-related hospital stays. No new treatments or procedures are given—it is purely observational.…