What are the four human prion diseases that have been identified so far? How are infectious prions transmitted? What are the clinical features shared by all prion diseases? List some diagnostic...

What are the four human prion diseases that have been identified so far? How are infectious prions transmitted? What are the clinical features shared by all prion diseases? List some diagnostic studies and classically findings suggestive of prion diseases? How are fungi different from bacteria? Are fungi heterotrophic (require carbon) or autotrophic (produce

carbon)?