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[Self-limited acute encephalopathy related to measles component of viral triple vaccine]

F Martinón-Torres1, M M Magariños, M Picón

  • 1Departamento de Pediatría, Complejo Hospitalario Universitario de Santiago de Compostela, Facultad de Medicina, Universidad de Santiago de Compostela, España. pdjmmsup@uscmail.usc.es

Revista De Neurologia
|July 3, 1999
PubMed

Insights

Neurological complications from the measles vaccine component are rare but possible. This case highlights acute encephalopathy in a 16-month-old, suggesting under-reporting of mild reactions.

Area of Science:

  • Neurology
  • Vaccinology
  • Pediatrics

Background:

  • Neurological disorders following measles vaccination are infrequent but carry significant clinical, diagnostic, and legal implications.
  • The controversy surrounding vaccine-induced neurological conditions necessitates careful consideration.

Observation:

  • A 16-month-old infant presented with self-limiting acute encephalopathy, including cerebellar ataxia and behavioral changes.
  • The infant exhibited clinical signs consistent with attenuated measles infection.
  • Diagnostic tests were negative, with a clear temporal association to triple virus vaccination.

Findings:

  • The clinical presentation and temporal link suggest the encephalopathy was secondary to the measles component of the viral triple vaccine.
  • Cerebellar ataxia and behavioral alterations were key neurological signs observed.

Implications:

  • Despite low incidence, the index of suspicion for vaccine-related neurological complications, even mild ones, may be underestimated.
  • Such reactions might be under-reported, impacting accurate incidence data and clinical vigilance.
  • This case underscores the importance of considering vaccine-related adverse events in pediatric neurology.
Abstract

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