Tripping over emerging pathogens around the world: A phylogeographical approach for determining the epidemiology of Porcine circovirus-2 (PCV-2), considering global trading

► We analyzed the main routes of the spread of PCV-2 between pig-producing countries. ► PCV-2 is widely distributed throughout pig-producing countries. ► Can., Den., Fr., Neth., and the USA are the main origins of the predicted routes. ► The dispersal routes of PCV-2 have a strong correlation with the trading of live pigs.