Prevention of respiratory infections.
D000293:Adolescent; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D000890:Anti-Infective Agents / Q000627:therapeutic use; D001424:Bacterial Infections / Q000517:prevention & control*; D001428:Bacterial Vaccines / Q000627:therapeutic use*; D001942:Breast Feeding; D002648:Child; D002675:Child, Preschool; D006801:Humans; D007114:Immunization; D007223:Infant; D010035:Otitis Media, Suppurative / Q000517:prevention & control; D012141:Respiratory Tract Infections / Q000517:prevention & control*; D014765:Viral Vaccines / Q000627:therapeutic use*; D014777:Virus Diseases / Q000517:prevention & control*
D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D001428:Bacterial Vaccines; D014765:Viral Vaccines