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One of the world's most prolific blood donors - whose plasma saved the lives of more than 2 million babies - has died.

"Without their quick actions or the generosity of blood donors, our mother may not be with us today," the family added.

State inspectors last year identified a blood donor with “undocumented lameness” that was subsequently removed from the donor pool and scheduled to see a vet.

A year on, to thank staff and support the Christmas appeal for blood donors, Adele has visited the Liverpool NHS Blood and Transplant regional centre, which sent most of the blood for her care.

England's blood donor service has warned blood stocks are still in short supply as it launches a fresh appeal for donors.