Answer:
Explanation:
Viruses are classified in several ways: by factors such as their core content, the structure of their capsids, and whether they have an outer envelope. Viruses may use either DNA or RNA as their genetic material. The virus core contains the genome or total genetic content of the virus.
One of the symptoms what are not likely due to an infectious agent is if that symptoms arise within his/her own body
Example :
- Because her organ is failing
- Or because he got internal bleeding