define Pathology, Etiology, Pathogenesis

PLEASE DISCUSS THE FOLLOWING TOPICS IN ESSAY FORMAT. SOURCE LISTED BELOW. No minimum word requirement.

 

1. Viruses – general features (main difference from bacteria)
2. Viral structure: define capsid, envelope, spikes, and nucleic acid (DNA or RNA)
3. Nomenclature: define Pathology, Etiology, Pathogenesis

 

SOURCE NEEDED: