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Infantile spasms and early immunization against whooping cough. Danish survey from 1970 to 1975.
  1. J C Melchior


    113 cases of infantile spasms were diagnosed in the period 1 April 1970 to 31 March 1975 after Denmark changed her immunization programme. Previously whooping cough vaccine was given as the triple combination at 5, 6, and 15 months of age. From 1 April 1970 it was given as a monovalent vaccine at 5 and 9 weeks of age and at 10 months of age. A comparison with previous material of 86 cases of infantile spasms from 1957 to 1967 showed no change in the age at onset. Though there may be an occasional connection between immunization and infantile spasms, the most important factor is a time-coincidence between any immunization given at a certain age with the neurological disorders which are natural for that age.

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