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Comparative Study
. 2004 Jun;23(6):568-71.
doi: 10.1097/01.inf.0000130075.56368.02.

Lack of evidence of encephalopathy related to pertussis vaccine: active surveillance by IMPACT, Canada, 1993-2002

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Comparative Study

Lack of evidence of encephalopathy related to pertussis vaccine: active surveillance by IMPACT, Canada, 1993-2002

Dorothy L Moore et al. Pediatr Infect Dis J. 2004 Jun.

Abstract

To assess whether pertussis-containing vaccines cause encephalitis or encephalopathy, the IMPACT network of Canadian pediatric centers screened more than 12,000 admissions for neurologic disorders between 1993 and 2002. Seven cases of encephalopathy began within 7 days after pertussis vaccination, but a more likely cause was found in each instance. No attributable case followed administration of >6.5 million doses of vaccine.

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