11.   But it also affected many people who took immunosuppressant drugs to prevent rejection of transplanted organs.

12.   CellCept is already approved for preventing rejection in patients who have received a kidney transplant.

13.   Cyclosporine prevents the rejection of a transplanted organ by the body of the recipient.

14.   Drugs used to prevent rejection of transplanted organs weaken the immune system and make recipients more vulnerable to infections.

15.   Earlier this year, a team of scientists published a paper saying that small doses of carbon monoxide could help prevent organ rejection.

16.   Her sister donated a kidney and Gladie took a steroid to prevent rejection.

17.   If Miguel had a transplant, he would need to take drugs to rein in his immune response and prevent rejection of his new heart.

18.   In addition, the drugs she takes to prevent organ rejection make it more difficult to control her blood sugar.

19.   Many serious technical problems remain to be resolved, including finding ways to guide the stem cells down desired paths of development and ways to prevent immune rejection.

20.   More significantly, the program reports on progress in finding organs and preventing their rejection by the body.