Fig. 1From: Modelling the within-herd transmission of Mycoplasma hyopneumoniae in closed pig herdsConceptual design of the compartmental model for transmission of M. hyopneumoniae within pig herds. (S: susceptible, E: exposed, Ia: acutely diseased and infectious, Ic: chronically diseased and infectious, R: recovered; transition parameters are explained in Table 1)Back to article page