Sperm donor’s genetic mutation linked to cancer in 10 conceived children

Sperm donor’s genetic mutation linked to cancer in 10 conceived children

What to know about US sperm donor screening guidelines and limits

Researcher Dr. Edwige Kasper (not pictured) advocates for a European limit on the number of births or families for a single donor. (iStock)

Sixty-seven children from 46 families were identified from the donor in eight European countries. (iStock)

Eggs and sperm are stored in a liquid nitrogen tank at the Fertility Center Berlin. (Jens Kalaene/picture alliance via Getty Images)

The U.S. Federal Drug Administration requires that all sperm donors undergo a physical exam, complete a questionnaire, provide their medical history, and undergo screenings for infectious diseases at an FDA-approved lab. (iStock)