Spongiform encephalopathies are 1) caused by prions. 2) chronic, fatal infections of the nervous system. 3) Creutzfeld-Jacob disease, kuru, and Gertsmann-Strussler-Scheinker syndrome. 4) associated with abnormal, transmissible, protein in the brain. 5) All of the choices are correct.

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Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.