'Six-way' kidney transplant first

US doctors have carried out what is believed to be the world's first simultaneous six-way kidney transplant.

Six recipients received organs from six donors in operations at the Johns Hopkins Hospital in Maryland.

You ask "What?!" or "Why?!"

Well, suppose Adam wants to donate one of his kidneys to Alysia but they are not a match. And suppose Bob wants to donate a kidney to Beth but they are not a match either. But if Bob matches Alysia and Adam matches Beth then they can do a 'two way' transplant.