Haemophilus influenzae


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Hae·moph·i·lus in·flu·en·'zae

Avoid the misspelling H. influenza and the jargonistic abridgment H. flu.
a bacterial species found in the respiratory tract that causes acute respiratory infections, including pneumonia, acute conjunctivitis, otitis, and purulent meningitis in children (in adults in whom it contributes to sinusitis and chronic bronchitis). Originally considered to be the cause of influenza, it is the type species of the genus Haemophilus.

Haemophilus influenzae

a small gram-negative nonmotile parasitic bacterium that occurs in two forms, encapsulated and nonencapsulated, and in six types, a, b, c, d, e, and f. Almost all infections are caused by encapsulated type b organisms. H. influenzae is found in the nasopharynx of approximately 75% of healthy children and adults. In children and in debilitated older people, severe destructive inflammation of the larynx, trachea, and bronchi may result from infection. Subacute bacterial endocarditis, purulent meningitis, and pneumonia also may be caused by it. Secondary infection by H. influenzae occurs in influenza and in many other respiratory diseases. Several H. influenzae B conjugate vaccines are available.

Hae·moph·i·lus in·flu·en·zae

(hē-mof'i-lŭs in-flū-en'zē)
A bacterial species found in the respiratory tract that causes acute respiratory infections including pneumonia, acute conjunctivitis, bacterial meningitis, and purulent meningitis in children, rarely in adults; originally considered to be the cause of influenza, it is the type species of the genus Haemophilus.
Synonym(s): Pfeiffer bacillus, Weeks bacillus.

Hae·moph·i·lus in·flu·en·zae

(hē-mof'i-lŭs in-flū-en'zē)
Bacterial species found in the respiratory tract that causes acute respiratory infections, including pneumonia and otitis.
References in periodicals archive ?
Haemophilus influenzae Type B Infections - Products under Development by Companies 16
Invasive serotype a Haemophilus influenzae infections with a virulence genotype resembling Haemophilus influenzae type b: emerging pathogen in the vaccine era?
Spectrum of invasive Haemophilus influenzae type b disease in adults.
Quantitative detection of Streptococcus pneumoniae, Haemophilus influenzae, and Moraxella catarrhalis in lower respiratory tract samples by real-time PCR.
The report reviews key players involved Haemophilus influenzae Type B Infections therapeutics and enlists all their major and minor projects
CLC Main Workbench 5 software revealed that sample numbers 1, 2 and 3 were similar to strains of nontypeable Haemophilus influenzae with GenBank accession numbers (Gan), AY497551, HIU08876 and AY497554, respectively (Figure 3).
Wenger, "Impact of Haemophilus influenzae type b Vaccines on the epidemiology of bacterial meningitis," Infectious Agents and Disease, vol.
Devise corrective measures for pipeline projects by understanding Haemophilus Influenzae Type b Infections pipeline depth and focus of Indication therapeutics.
Although there was an increase in the risk of developing invasive pneumococcal disease and Haemophilus influenzae type b, this increase could not be distinguished from chance finding, because a relatively small number of studies were available.
Streptococcus pneumoniae (pneumococcus) and Haemophilus influenzae type b (Hib) account for approximately 60% of pneumonia deaths worldwide of children aged 1 month-5 years in countries that do not use pneumococcal or Hib conjugate vaccines ( 3,4).
Effectiveness of Haemophilus influenzae type B conjugate vaccine on prevention of pneumonia and meningitis in Bangladeshi children: a case-control study.

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