NHS appeals for O-type blood donations after cyber-attack delays transfusions

London hospitals struggling to match patients' blood at usual speed - and O-type safe to use for all patients

An appeal has been launched for O blood-type donors to book appointments across England after the ransomware attack affecting major London hospitals.

NHS Blood and Transplant is appealing for O blood-type donations as this is safe to use for all patients. The cyber-attack means the affected hospitals cannot match patients' blood at the same frequency as usual.