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Present arguments on the issue of animal to human transplants In general, there are still a number of controversies about whether animal to human transplant is reasonable. It’s clear that most of medical experts and residents have indicated that they are opposing the animal to human transplants because it has high risk. The first and more important reason to oppose the issue is the operation of the cross-species transplant has low probability for success and it’s easy for human suffer from diseases because of the operation. Due to the level of the medical technology is immature and does not have an effective solution for these problems. For example, the medical experiments had resulted in the HIV crossed from chimpanzees to human and there are potential risks of cross-species infection. It’s too dangerous for potential recipients to accept the operation. Another reason to question whether we should pursue cross-species transplant is ethical issue. A majority countries are opposing the cross-species transplant and undoubtedly be against the concept of introducing animal parts into the human body. Due to some special culture, some animal such as pigs, cows, or sheep may be regard as the most respected animal in some countries and they are forbidden to do experiments. It will result in the cultural unbalanced, so it would make better sense to further develop other approaches to the problem, such as artificial organs, to deal with transplants. The final reason to oppose the issue is both not only cost a large number of money on the research but the fare of the operation. For instance, according to the statistics, animal to human transplant can cost even more than human to human transplants-up to $250,000, excluding the costs of rearing the animals and providing post-surgery treatment. However, If government spent the money on the other medical technology such as improve the antibody to defend our bodies ,it would be more better for ethic. In conclusion, it is not exaggerated that the cross-species transplant has so many negatives that we should abandon it. And the diseases not only affecting the organ recipient, but also influencing the human population. Therefore, we should against the technique which has damaged our society.