Three Hemophilus Species

<i>Haemophilus parainfluenzae</i> Lung Abscess

“…Such occurrences are com mon as only 1 of the 5 previously reported pneumonias had a positive sputum culture for H. parainfluenzae. [3], Although a posi tive transtracheal or blood culture con firms the diagnosis, our patient's gram stain, sputum culture, response to anti biotics, and absence of other pulmonary disorders were consistent with a H. parain fluenzae lung abscess.…”

“…In fact, only 5 adult cases have been reported [2,3,5]. The pathogen esis of such infections involves aspiration from the oropharynx thereby seeding the lung with H. parainfluenzae.…”

Case Report of Haemophilus parainfluenzae Sepsis in a Newborn Infant Following Water Birth and a Review of Literature

“… 41 42 Hable et al suggested that neonatal infections may be rare because of presence of protective maternal antibodies. 43 An important aspect of H. parainfluenzae infection is that β lactamase production occurs with a frequency that may be greater than H. influenzae ; thus, antimicrobial sensitivity is important in determining appropriate antibody treatment. 44 …”

Haemophilus parainfluenzae: report of an unusual cause of neonatal sepsis and a literature review

“…[11]. Neonatal septicaemia caused by H. parainfluenzae, however, is still very rare and it is postulated to be secondary to protective maternal antibodies [12].Since the first report in 1966 of a neonate with H. parainfluenzae meningitis [4], there have been only six cases of invasive H. parainfluenzae neonatal infections reported in the literature (Table 1). All cases were early-onset with risk factors for sepsis present.…”