Foot and Mouth There are signs that the epidemic of foot and mouth disease in Britain may be leveling off. But that doesn't mean the threat to U.S. livestock will go away. NPR's Joe Palca reports that the possibility of foot and mouth disease entering America is a constant one - and that recent events give cause for some optimism that the disease can be kept out.

Foot and Mouth

Foot and Mouth

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There are signs that the epidemic of foot and mouth disease in Britain may be leveling off. But that doesn't mean the threat to U.S. livestock will go away. NPR's Joe Palca reports that the possibility of foot and mouth disease entering America is a constant one - and that recent events give cause for some optimism that the disease can be kept out.