System of Neonatal Screening for Inborn Errors of Metabolism in Japan
Some features of the mass screening system in Japan are summarized in Table 1. Since October 1977, Japan has started nationwide screening for PKU, MSUD, homocystinuria, histidinemia, and galactosemia. In 1976 and 1977, the federal government has organized special training courses for technicians who will be responsible for screening in each area. After a given amount of time for preparing the screening system, the federal government asked the local governments to start a screening program for these five diseases beginning in October 1977. Though we do not have any mandatory law for screening, the percentage of tested newborns is increasing rapidly.
KeywordsEurope Tyrosine Methionine Histidine Leucine
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