BRONCHIOLITIS

This study will watch about 65 children, ages 1 to 24 months, who are in the hospital for bronchiolitis—a common lung infection that can make it hard to breathe. Researchers will collect information from parents and medical records to find out which factors, like premature birth …

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 nirsevimab immunization works to prevent RSV-related hospital stays. The goal is to understand if the shot is effective dur…

This study looks at whether the types of bacteria in a child's gut are linked to how sick they get from RSV, a common respiratory virus. Researchers will compare gut bacteria and immune markers in 250 Vietnamese children with mild versus severe RSV. No treatment is given; the goa…

This study follows 270 preterm babies (born before 32 weeks) from birth to age 3 to see how the germs in their nose and gut affect their breathing health. Researchers will collect nasal swabs, stool samples, and some blood and milk samples to track germ changes. The goal is to fi…