Screening for cystic fibrosis--further thoughts [editorial].

Screening of the newborn for genetically determined diseases is one thing when 
sought by parents who know they are likely to pass a 
defective gene to their offspring; it is another thing altogether to 
apply screening tests to all newborns, irrespective of individual risks. In 
Australia, in the foreseeable future, the best hope for infants and 
children born with cystic fibrosis lies in the application of the 
proven sweat test technique whenever any of the numerous presenting features 
of the disease crops up. 