Harrison told CNN,an American channel,about why he chooses to donate,even though it’s not the most pleasurable experience:“Never once have I watched the needle go in my arm.I can’t stand the sight of blood,and I can’t stand pain.”

　　An amazingly unique antibody(抗体) in Harrison’s blood makes it a true lifesaver for babies who could be affected by rhesus disease.

　　The condition occurs during some pregnancies,when a woman who has rhesus-negative blood produces antibodies that destroy her babies’ cells.This can happen when the baby has the same rhesus-positive blood as the father.Rhesus disease can cause health issues in babies.It can even result in death.

　　Harrison’s blood helped physicians develop an injection called Anti-D in the 1960s,which prevents women who have rhesus-negative blood from developing the harmful antibodies while pregnant.After Harrison completes one of his routine donations,his blood can be used to create more vaccines(疫苗).

　　“I started donating in 1955,two days after I turned 18,”Harrison said when he completed his 1,075th donation.

　　As CNN reported,every Anti-D vaccine created in Australia has something to do with a donation from Harrison,who holds the record for most blood donations in Australia.

　　“A number of mothers have come up to me and said,‘Thank you very much for what you’ve done,because I now have one,two,three healthy children,’”Harrison said.

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