Sperm donor barred from fathering more children.

A Dutch court has permanently banned a sperm donor, identified only as Jonathan M., from donating any more of his sperm after he fathered at least 550 children in the Netherlands and other countries and misled prospective parents about the number of offspring he helped to conceive. The donor provided sperm to Dutch fertility clinics, to a clinic in Denmark and to other people he connected with through advertisements and online forums. The court ruled that the donor deliberately lied about his donation history to persuade parents to take him as a donor, and that all the parents are now confronted with the fact that the children in their family are part of a huge kinship network, with hundreds of half-siblings, which they did not choose.