Key result
A rare case of Haemophilus influenzae type d pneumonia was described in an infant, a condition typically caused by type b in pediatric patients.
Case Report (n=1)
This case report highlights a rare instance of Haemophilus influenzae type d pneumonia in an infant, whereas type b is typically responsible for pediatric cases.
May prompt consideration of non-b strains in infant pneumonia; leaves open need for broader surveillance.
Definitive diagnosis ofHaemophilus influenzaepneumonia 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 ofH influenzaeis related mainly to the presence of a capsular polysaccharide, andH influenzaeis divided into six types according to the nature of this capsular polysaccharide. Review of the pediatric literature disclosed that of 18 patients withH influenzaepneumonia in whom typing was performed, 17 had type b and only one a nontypable strain.1-8One case of type c,9one of type d,10and three cases of type f1,10pneumonia 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 withH influenzaetype d pneumonia. Report of a Case.—A
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Churku Mohan Reddy (1979) conducted a case report in Haemophilus influenzae type d pneumonia (n=1). Haemophilus influenzae type d was evaluated. A rare case of Haemophilus influenzae type d pneumonia was described in an infant, a condition typically caused by type b in pediatric patients.
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