Mike Zhang (IMAGE) Virginia Tech Caption With a four-year, $630,000 grant from the USDA National Institute of Food and Agriculture Mike Zhang, pictured above, and co-principal investigator XJ Meng are researching a nanoparticle-based vaccine to curb a highly contagious coronavirus among swine. Photo by Jim Stroup for Virginia Tech. Credit Virginia Tech Usage Restrictions No restrictions. License Public Domain 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.