Answer
because immunosuppressive drugs which suppress a natural immune response to an organism was not used in the early 1800s, the bodies kept on rejecting the foreign organs so the patient kept dying when the body sent antibodies to kill the transplanted organ, seeing it ias a foreign body.
later on in time, immunosuppressive drugs were brought in to stop the body rejecting and attcking the organ and so now there are very few rejections meaning there is a much higher success rate.
First answer by ID3271027831. Last edit by Bernie77. Contributor trust: 0 [recommend contributor]. Question popularity: 23 [recommend question]
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