A serial inseminator in the Netherlands | The doctor inoculates …

The former director of a sperm bank in the Netherlands, who died in 2017, is the biological father of at least 49 children born from in vitro fertilization, an organization that represents parents and the children at the center of this case. Jan Karbaat, a physician and former director of a sperm bank located in Barendrecht, The Netherlands, is suspected of having used his own sperm several times instead of that of the chosen donors. Karbaat also had 22 children from several sentimental couples.

The results of the badysis of DNA samples "showed that 49 children in this case are direct descendants" of Karbaat, said the organization Defense for Children in a statement. "The results confirm the serious suspicions that Karbaat used his own sperm in his clinic," he added.

The turmoil around this case escalated in February, when a Dutch court ruled that Karbaat's DNA samples should be made available to parents and their children for the purpose of comparison.

Shortly before his death, Jan Karbaat declared that he was the biological father of 60 children since the time he was working at the clinic, which closed in 2009 due to administrative irregularities. Karbaat allegedly falsified data and descriptions of sperm donors and exceeded the agreed maximum of six children per donor.

The group of alleged sons of Karbaat and their families took legal action to obtain the DNA profile of the doctor. Lawyers for the Karbaat family said that customers' right to privacy must be respected.

The judges' decision to authorize a paternity test "placed the children's right in front of the Karbaat and his family," said Iara de Witte, an adviser to the Defense for Children organization. "Now, after years of uncertainty, the plaintiffs can close this chapter and begin to understand the fact that they are one of the many descendants of Karbaat," he said.

One of the children, Eric Lever, told the Dutch newspaper NRC in February "do not be mad at Karbaat".