Cows immune to BSE near reality
US - A major advance towards producing prion-free cows that would be immune to mad cow disease has been made by researchers at companies in the US and Japan. Their principle aim is to make genetically modified cattle that produce pharmaceuticals in their milk. But the companies hope that also making the animals resistant to BSE (bovine spongiform encephalopathy) will reassure consumers.Source: NewScientist.com