Backyard Pig Trade Provides Insight to Controlling African Swine Fever (image) University of California - Davis Share Print E-Mail Caption Free-ranging "backyard pigs" in the republic of Georgia. Understanding how these animals are traded could help in preventing spread of African swine fever. Credit FAO Usage Restrictions May be used with acknowledgement. Share Print E-Mail 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.