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Killer in hiding

Killer in hiding

作者:公西索讶  时间:2019-03-06 02:08:02  人气:

By Jonathan Knight and Michael Day HEALTHY animals can carry an infectious form of the prion disease scrapie without ever developing symptoms, say researchers in London. They have found that symptom-free mice can harbour hamster scrapie for years, with enough of the agent in their brains to infect other animals. The results raise the possibility that many seemingly healthy cattle in Britain—and across Europe—could harbour BSE,