Evolution of model (2) showing the state trajectories for diagnosed infectious individuals (I) and total population (N).

<p>The dot plots represent the year-by-year trend in yearly case reports for Cameroon over the period 1994–2010. Parameter values are defined in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120607#pone.0120607.t002" target="_blank">Table 2</a> and initial values are presented in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0120607#pone.0120607.t003" target="_blank">Table 3</a>.</p>