Figure 9From: Dynamics of a delayed SIR model for the transmission of PRRSV among a swine populationSystem (45) under goes a Hopf bifurcation when \(\tau_{1} = 8.896 > \tau^{*}_{10} = 4.0945\) and \(\tau_{2} = 0.55 \in (0, \tau_{20})\)Back to article page