Sentences with phrase «infectious scrapie»
In their study, the NIAID scientists injected infectious scrapie prion protein into the brains of mice.
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Scientists studying the commonest of the diseases in the group, scrapie in sheep, concluded decades ago that no virus or bacterium could be involved because infectious material appeared to contain no DNA.
Later radiation biologist Tikvah Alper and the mathematician John Stanley Griffith advanced the hypothesis that scrapie and Creutzfeldt — Jakob disease are were caused by infectious protein, seemingly contradicting the central dogma.