Association of viral and bacterial respiratory infection with exacerbations of wheezing in young asthmatic children.
D001249:Asthma / Q000150:complications / Q000175:diagnosis / Q000382:microbiology*; D001419:Bacteria / Q000302:isolation & purification; D001424:Bacterial Infections; D002675:Child, Preschool; D006801:Humans; D007223:Infant; D012141:Respiratory Tract Infections / Q000382:microbiology*; D014777:Virus Diseases