Doctor! Doctor! I can’t feel my legs
A man woke up from a serious surgery. He screamed, “Doctor! Doctor! I can’t feel my legs!”. And the doctor replied, “I know. I amputated you arms.”
A customer of mine is a nurse in Critical Care. She said the patient computer screens were showing Doctor and Nurse jokes the day before the Wanna Cry hit. She thought it was a prank by one of the staff.
This would seem to indicate that the Wanna Cry was targeted on the NHS.