The High Court of England and Wales has ruled that a clinic may contact an egg donor to ask her to provide a DNA sample.
The egg donor went through all the normal tests required by the Human Fertilisation and Embryology Authority and was cleared to be a donor. During the process she indicated that she did not want to be notified if, as a result of an affected child being born, she could have 'a previously unsuspected genetic disease, or that I am a carrier of a harmful inherited condition’.
However, a baby girl subsequently born using her eggs has multiple health problems, and the child's doctors feel that whole genome sequencing of a trio (the girl, and both of her genetic parents) would be her best chance of getting a diagnosis.
The court ruled that the clinic may make the request, but that the donor cannot be compelled to provide a sample.
You can read the full judgment here.