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. Author manuscript; available in PMC: 2016 May 1.
Published in final edited form as: Math Biosci. 2015 Feb 26;263:121–132. doi: 10.1016/j.mbs.2015.02.007

Figure 1.

Figure 1

Flow diagram of the model. Infection process: (a) encounter YS, YR and YC, respectively, and get infected; (b) encounter YSC and get infected; (c) encounter YRC and get infected. (d) Recovery process. (e) Treatment process.