Hib disease falls after campaign.
From 1999, the number of Hib cases increased in all age groups, particularly in children under five years. Reasons for this included a decline in indirect protection, a decline in vaccine effectiveness in children vaccinated in infancy, and a temporary change in the Hib vaccine combination offered to young infants. As a result, a Hib vaccination booster campaign was conducted in 2003, targeting children from six months to four years of age.
The campaign resulted in a dramatic reduction in cases within 12 months, and was followed by a reduction in cases among older children and adults. Since the campaign, there has been an increase in the number of Hib cases among one- to three-year old children, primarily in children too young to be vaccinated during the booster campaign. This group of children are being targeted in the pre-school catch-up programme that began in September 2007.
Ladhani S, Slack MP, Heys M, White J, Ramsay ME. Fall in Haemophilus influenzae serotype b (Hib) disease following implementation of a booster campaign. Archives of Disease in Childhood, 2008; 93(8): 665-9.
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|Title Annotation:||CLINICAL PAPERS; Haemophilus influenzae serotype b|
|Article Type:||Brief article|
|Date:||Sep 1, 2008|
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