NIBSC / SCIENCE PHOTO LIBRARY NIBSC / SCIENCE PHOTO LIBRARY
Mumps. Coloured transmission electron micrograph of a virus particles of the mumps virus (a member of the paramyxoviridae virus family). Individual virions possess a protein capsid (surrounding genetic information in form of RNA) which has helical symmetry (the particles themselves are roughly spherical). Surrounding the capsid is a protein envelope covered in projections made up of sub-units of haemagglutinin (permits agglutination of red blood cells) and enzyme neuraminidase. Symptoms of mumps include fever, headache & vomiting, preceding swelling of the parotid salivary glands in neck. Magnification: x120,000 at 6x4.5cm size.
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