Fig. 5: A dynamic model of MERS-CoV transmission in camel populations.

A schematic of the model is shown for the youngest of i age classes (i = 1). Animals are born either protected by mAbs or susceptible, with a probability p, of being protected proportional to the fraction of adults previously infected at the time of birth. The states represented are defined as follows M - maternally acquired immunity, S1 - susceptible, I1 - first-time infected, R - recovered, S2 – susceptible again following infection and I2 - reinfected. This structure is repeated for each of the further 48 age classes. The symbols used to represent rates are defined in Table 3.