He is now working at the CJD surveillance unit based at Case Western Reserve University in Cleveland, Ohio.
CJD Foundation head Noel Baldwin, who lost his son Patrick to the killer disease, said: "There is more and more information coming out that proves Dr Narang was right all along.
Medical
"He said years ago that CJD could be found in blood and passed on by transfusions and medical instruments. This has now been accepted.
"He argued that BSE could cause both sporadic as well as vCJD, and recent research has shown this to be correct. He also invented a urine test which shows if someone is harbouring the disease."
Mr Baldwin also rued the Government's decision to pull Medical Research Council funding from Dr Narang.
He said: "Now it looks as if the US will benefit financially from this ground-breaking research.
"The UK establishment has ignored him for more than 10 years. We believe those responsible should be made accountable for this because if they had listened to Dr Narang maybe some of those poor people wouldn't have died from this terrible disease.
Scandal
"This is a national scandal that needs to be fully addressed by a public inquiry.
"We are planning to launch this campaign in the next few months and will be involving sympathetic MPs to get this issue aired in the House of Commons."