LAGUNA DESIGN / SCIENCE PHOTO LIBRARY LAGUNA DESIGN / SCIENCE PHOTO LIBRARY
Human poliovirus particle. Computer artwork of the capsid of the human poliovirus, with proteins represented by coloured blobs. The capsid is a protein coat that encloses the virus's RNA (ribonucleic acid) genome. The protruding green proteins are receptors, which enable the virus to recognise and bind to a host cell. Poliovirus infects children and causes poliomyelitis, a disease which in severe cases damages the nervous system, leading to paralysis or death.
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