The article presents current data on national programs for screening newborns for phenylketonuria in various countries. It is noted that the results of the first neonatal screening programs contributed to the introduction and expansion of new programs in the United States and Europe. The publicity of newborn screening has had a positive impact in the US, UK and Japan. The authors believe that multistage target criteria for blood phenylalanine concentrations, policies requiring newborn screening, better financial support for newborn screening, publicity for newborn screening, national guidelines on phenylketonuria may be prospects that should be further explored in Azerbaijan.
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