Editorial: Haemophilus influenzae infections.
D000367:Age Factors; D000917:Antibody Formation; D002675:Child, Preschool; D006192:Haemophilus Infections / Q000401:mortality / Q000517:prevention & control; D006193:Haemophilus influenzae / Q000276:immunology; D006801:Humans; D007114:Immunization; D007223:Infant; D007231:Infant, Newborn