Polio Virus (IMAGE) Diamond Light Source Caption This is a radius colored surface representation of Type 1 poliovirus (Mahoney). The surface is colored from blue to red according to the distance from the particle center. Credit Courtesy of Dr. Liz Fry, Dept. Structural Biology, Oxford University Usage Restrictions Include credit 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.