I just got the link to my paper that I uploaded to arXiv (here is the link: Epidemiological models with parametric heterogeneity: Deterministic theory for closed populations).
This paper reviews what I was able to learn about epidemiological models using the general theory of heterogeneous populations. It covers the results in my previous publications on the subject: http://arxiv.org/abs/0802.2059 and http://arxiv.org/abs/0809.1578 , along with some generalizations and extensions.
The paper is submitted to Mathematical Modelling of Natural Phenomena, for the special issue on epidemiology.
Mathematical Biology 
Magnificently! Very interesting!