Before revision:  Almost half of the studies stem from one of two models . We call for a diversification of modeling approaches through developing additional frameworks. All models but one are host specific to either domestic pigs or wild boar , despite the fact that spillover events between the domestic and wild compartments can play an important role in  outbreaks.
After revision:  Almost all models are host specific to either domestic pigs or wild boar , despite the fact that spillover events between the domestic and wild compartments can play an important role in outbreaks.