- DONALDKNOWLES:"Onceacowisinfectedwiththisparasite,allthedataindicatesthatthecowstaysinfectedforlife."DONALDKNOWLES:"Youneedaticktotransmitfromoneinfectedcowtotheother.Theywon'ttransmitjustbystandingnexttoeachother.Youneedaticktomoveitbetweenthem....
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