## Further Information

- This app (and all others) are structured such that the Shiny part (the graphical interface you see and the server-side function that goes with it) calls an underlying R script which runs the simulation for the model of interest and returns the results.
- For this app, the underlying function running the simulation is called `simulate_introduction.R`. You can call this function directly, without going through the shiny app. Type `?simulate_introduction` into the R console for more information. If you go that route, you need to use the results returned from this function and produce useful output (such as a plot) yourself.
- You could also modify this R function for your own purposes - though that requires R coding knowledge.
- Some useful books which cover the material of this and most of the other apps (though often a somewhat more mathematical level) are (Vynnycky and White 2010) and (Keeling and Rohani 2008).

### References

Keeling, Matt J, and Pejman Rohani. 2008. Modeling Infectious Diseases in Humans and Animals. Princeton University Press.

Vynnycky, Emilia, and Richard White. 2010. An Introduction to Infectious Disease Modelling. Oxford University Press.