pls help me with this il give brainliest and max points for a good answer(dont answer if you dont have an liget answer) if u have a question do it in the comments.

pls help me with this il give brainliest and max points for a good answerdont answer if you dont have an liget answer if u have a question do it in the comments class=

Respuesta :

Outbreak - can cause widespread
Vaccines-are weekend or killed to for
Immune system- replicate in a host
Cells - tiggers a reaction from the