Fox News: Trained dogs can smell Parkinson's disease before symptoms show up, study finds Trained dogs can smell Parkinson's disease before symptoms show up, study finds Overview of Autoimmune Diseases Your immune system is the network of cells and tissues in your body that work together to defend you from viruses, bacteria, and infection. It tries to identify and destroy the invaders that might hurt you. In autoimmune diseases, proteins known as autoantibodies target the body’s own healthy tissues by mistake, signaling the body to attack them.

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Q. Diseases my parents worried about when I was a child, like measles, went away, but now they're coming back. Why is that? A.

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They went away because nearly everyone got vaccinated against them, and the vaccines worked. They're coming back because fewer people are getting the vaccines. The discovery of new viruses, and the development of vaccines against them, was made possible in large part ... Dogs can be trained to reliably sniff out Parkinson’s disease from a person’s skin secretions years before symptoms appear, a new study found. A pair of dogs were trained to detect Parkinson’s disease ...

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