Toxicity of pertussis vaccine: frequency and probability of reactions

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RESUMO

From a file of 1127 children in whom signs of brain damage were reported after injections of vaccines containing pertussis antigen, the first 197 cases with good documentation of events were chosen for further study. In these children, 291 reactions had been reported, usually of screaming attacks (68), convulsions (87), collapse (17), or one or more of these signs (99), within 24 hours of injection. Subsequently 165 children became mentally defective and 102 had further convulsions. In 129 (65%), contraindications to vaccination were present ab initio and in 25, subsequent injections were given despite reactions to a previous injection or injections.

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