Question: How do I plot the solution of a differential equation in Maple?

BIOMAT_project.mw

 

I am looking at an SIR model and an adapted model that has a vaccine for measles. I would like to use Maple to plot the difference between the two models. 

All the work that's been done so far is in the attached file. I would like to have multiple graphs, changing the starting values but I just need the general idea of how to do this first. 

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