11. Among other potential uses of xenotransplants are these: 12. Xenotransplant researchers say there is no evidence that they infect humans outside the laboratory.13. Boston is a leading center of xenotransplant reserach. 14. Drug and biotech companies have poured more than dlrs 100 million into xenotransplant research. 15. But all xenotransplants must continue to be closely watched for viruses, she added. 16. Xenotransplants are thus potentially a more effective alternative.17. With so much at stake, why are scientists and health officials proceeding with xenotransplants ? 18. Berger says the potential market for xenotransplants would easily exceed $ 1 billion a year. 19. Doctors do not understand the full range of illnesses that might be transmitted by xenotransplants . 20. The potential for xenotransplants has not been lost on major pharmaceutical and medical-device companies.
