RT Journal A1 REDDY C T1 HAemophilus influenzae type d pneumonia JF American Journal of Diseases of Children JO American Journal of Diseases of Children YR 1979 FD January 1 VO 133 IS 1 SP 96 OP 96 DO 10.1001/archpedi.1979.02130010102022 UL http://dx.doi.org/10.1001/archpedi.1979.02130010102022 AB Definitive diagnosis of Haemophilus influenzae pneumonia is best achieved by roentgenographic evidence of pneumonia together with recovery of the organism from blood, pleural fluid, lung tissue, or tracheobronchial secretions. The pathogenicity of H influenzae is related mainly to the presence of a capsular polysaccharide, and H influenzae is divided into six types according to the nature of this capsular polysaccharide. Review of the pediatric literature disclosed that of 18 patients with H influenzae pneumonia in whom typing was performed, 17 had type b and only one a nontypable strain.1-8 One case of type c,9 one of type d,10 and three cases of type f1,10 pneumonia have been reported in the adult literature. Thus, type b is responsible for nearly all the pediatric cases and a majority of the adult cases. This communication describes an infant with H influenzae type d pneumonia.Report of a Case.—A