Health officials in the US are reexamining transplant criteria after the recipients of two kidneys from a single donor became critically ill with a rare infection. The donor, a child, had experienced seizures(発作、卒中)and was initially diagnosed with an autoimmune disease(自己免疫疾患)that is not transmittable to others. Only after the organs were transplanted and the recipients became ill did doctors discover the misdiagnosis. Currently, individual transplant centers have the final say(決定権)in whether or not to use organs from a donor with a poorly defined neurological disorder.