About sixty years ago , successful organ transplants for humans began to show signs of success . Since then , organ transplants have saved millions of lives worldwide . More than 65.000 Americans are waiting for an organ transplant . While each day about 13 will die because not enough organs are available . o­nce a transplant has been completed , preventing the body’s rejection of the transplanted organ can be an o­ngoing challenge . The body’s attempt to destroy the transplanted organ ; usually occurs in the first year after transplant . Rejection occurs when the body tries to attack a transplanted organ or tissue as a foreign object and produces antibodies to destroy it . Anti-rejection drugs help prevent rejection .
大約六十年前，人體器官移植開始出現成功的曙光。此後器官移植，在全球救活了幾百萬人。美國目前有六萬五千人等待器官移植，但是因為沒有足夠的器官，每天有大約十三人死亡。完成器官移植之後，防止身體排斥移植器官，也是持續不斷的挑戰。身體企圖破壞移植來的器官，通常會在移植的第一年內發生。身體企圖把移植器官和組織視為異物，而產生抗體破壞它們時，就會發生排斥。抗排斥藥物有助於防止排斥。

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