A map of Austria's pig trade network (IMAGE) Complexity Science Hub Vienna Caption Spatial density of pig farms with recorded movements in Austria in 2021. The black lines represent the administrative borders of the federal states. Credit © Complexity Science Hub Usage Restrictions Please write © Complexity Science Hub as the source License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.