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There is no known way to prevent this disorder. Genetic testing can detect if you are a carrier of the gene for this disorder. If you or your partner are from an at-risk population, it is recommended that you undergo testing before starting a family. Testing the amniotic fluid can diagnose Tay-Sachs disease in the womb.
Johnston MV, Neurodegenerative Disorders of Childhood. In: Kliegman RM, Behrman RE, Jenson HB, Stanton BF, eds. Nelson Textbook of Pediatrics. 18th Ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 599.