What's missing from current methods for genetic screening of sperm donors?

(Mary Ann Liebert, Inc./Genetic Engineering News) US sperm banks perform genetic testing to screen for and disqualify carriers of a limited number of recessive disease mutations, but more comprehensive and affordable DNA-based screening methods are now available that can detect many more disease-causing genetic variations. To protect future children from highly heritable diseases, sperm banks need to modernize their testing methods, according to an article published in Genetic Testing and Molecu