Helaine .'s Library tagged madcow →  View Popular

The only two cases of mad cow in U.S.-born cattle, found in Texas and Alabama, were a different form of the disease than the strain commonly found in Europe, French prion researcher Thierry Baron told scientists at a meeting in London in May.

Baron believes it is likely that the two U.S. cases — and at least five others found in France, Italy and Germany — occurred in a way that is strongly reminiscent of the most common human form of the disease, which is also not blamed on a contaminant. More research is necessary to know for certain, Baron said in an e-mail sent last week to USA TODAY.

If it can appear out of thin air to infect cattle as it does humans, "we may never be able to get rid of the disease," says Jean-Philippe Deslys, central coordinator of NeuroPrion, the network that coordinates European prion researchers.