article_snippet: Last year, two patients in Wales died after being given kidney transplants infected with a parasitic worm.
article_snippet: Darren Hughes, 42, and Robert 'Jim' Stuart, 67, were each given a kidney from a transplant donor who was carrying a parasitic worm in his organs when his died.
article_snippet: Doctors were not aware a transplant donor who was carrying the deadly worm in his organs when he died had the worm - known as Halicephalobus, which lives in soil and is found in horses - when the transplant operations were carried out at the University Hospital of Wales in Cardiff.
article_snippet: Mr Stuart and Mr Hughes began to 'deteriorate rapidly' after Mr Stuart and Mr Hughes surgery and died less than three weeks later.
article_snippet: Mr Stuart and Mr Hughes are part of only five cases ever recorded across the world - and all have died from the worm infection.
article_snippet: Mr Stuart, of Cardiff, and Mr Hughes, of Bridgend, had kidney transplants in November 2013 but both died before Christmas.
article_snippet: A post-mortem examination revealed both died from infection called Meningeoencephaltis which was caused by a parasitic worm.