Polio virus figure (IMAGE) Umea University Caption The left image shows how newly formed poliovirus particles (pink) are loaded with the virus genome and turn into infectious viruses (red). On the right: if the cell’s protein VPS34 is inhibited, the virus assembly stops halfway. Half-made virus particles are shown in red. One virus particle is 30 nanometres (one nanometre is one millionth of a millimetre). Credit Selma Dahmane, Umeå University, Sweden Usage Restrictions Media use 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.