Clinical manifestations and outcome of Haemophilus influenzae type b disease

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Abstract
Objectives: To document clinical manifestations, laboratory findings and outcome of childhood Haemophilus influenzae type b (Hib) infections. Methodology: Medical records of 235 children with Hib disease admitted to hospital during a 2 year period were reviewed; additional information was obtained by questionnaire and follow up 6 weeks after discharge. Results: Three-quarters of patients presented with either meningitis or epiglottitis. Children with epiglottitis were older, had shorter illnesses and were less likely to have had antibiotics before admission than those with meningitis; 38% of the latter had been given some antibiotic therapy, with no apparent effect on the outcome. Fever persisted for 7 days or more in 23% of patients with meningitis. Death from meningitis occurred in 3.8% of patients and was due to fulminating disease. Conclusions: These data will assist in recognition and appropriate management of Hib disease as the clinical manifestations become less familiar following the introduction of immunization. Specific laboratory diagnosis is required for accurate surveillance, which should be maintained in order to ensure high immunization rates.