Haemophilus influenzae


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Related to Haemophilus influenzae: Haemophilus influenzae type b, Haemophilus influenzae meningitis, Haemophilus influenzae pneumonia

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 ?
et al: Quantitative measurement of 'natural' and immunization-induced Haemophilus influenzae type b capsular polysaccharide antibodies.
Nontypeable Haemophilus influenzae meningitis in children: phenotypic and genotypic characterization of isolates.
Characterisation of invasive Haemophilus influenzae isolates in Slovenia, 1993-2008.
Comparison of lipopolysaccharides from Brazilian purpuric fever isolates and conjunctivitis isolates of Haemophilus influenzae biogroup aegyptius.
The epidemiology of Haemophilus influenzae meningitis in children under five yrs of age in The Gambia, West Africa.
Coverage of the Haemophilus Influenzae Type b Infections pipeline on the basis of route of administration and molecule type.
Haemophilus influenzae type b conjugate vaccine is highly effective in the Ugandan routine immunization program: a case-control study.
Only a few adult cases of this syndrome caused by Haemophilus influenzae type B have been reported (3).
Trials undertaken in the Czech Republic looked at routine vaccinations for pneumococcal disease, haemophilus influenzae type b (Hib), diphtheria, tetanus, whooping cough, hepatitis B, polio, and rotavirus.
Since the haemophilus influenzae type b vaccine (Hibs) began in 1992, cases have fallen 99 per cent.
Hib meningitis has been virtually eliminated in young children in Uganda just 5 years after the country introduced Haemophilus influenzae type b (Hib) vaccine nationwide--according to an independent study.

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