Rotating Polio Capsid (VIDEO) John Innes Centre This video is under embargo. Please login to access this video. Caption This is an empty polio capsid -- non pathogenic mimics of the poliovirus are grown in plants. Credit Dimond Light Source & Oxford University Usage Restrictions None License Licensed 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.