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Recent advances in science have been amazing. One recent change is a test that may be able to identify some fatal brain-wasting diseases caused by prions. It may not sound like much, but this was once thought impossible but a group has found a way to not only be able to identify the damaged prions, but possibly be able to destroy them, another thing thought impossible. So a way to identify (aside from examining brain tissue after death), a vaccine and possibly a treatment may be in the cards in the future for these diseases. The big one getting play here right now is Mad Cow disease.