| http://www.w3.org/ns/prov#value | - The agent responsible for BSE and other TSEs is smaller than the smallest known virus and is not completely characterized.Three theories.There are three main theories on the nature of this disease agent: * The agent is a virus with unusual characteristics.* The agent is a prion-a type of protein that carries some genetic code and is highly resistant to breakdown by enzymes, heat and disinfectants.
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