La vacunación contra el tétanos parece proporcionar protección frente al desarrollo de la esclerosis múltiple, según un estudio firmado por investigadores de la Harvard School of Public Health, aparecido en "Neurology".
Los autores recogieron datos de nueve estudios publicados entre 1966 y 2005 para investigar la posible asociación entre la vacunación frente al tétanos y el riesgo de la enfermedad neurodegenerativa, comparando 963 casos de esclerosis múltiple y 3.126 controles.
Según los resultados, haber sido vacunado contra el tétanos se asocia a un riesgo un 33% menor de desarrollar esclerosis múltiple. Los autores creen que es necesario investigar esta asociación con mayor profundidad, y recuerdan que la hipótesis de que la inmunidad frente al tétanos puede proteger frente a la esclerosis múltiple está apoyada por recientes estudios prospectivos.
Neurology 2006;67:212-215
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