#68472 of 105494
London, United Kingdom
Budding Human Metapneumovirus Particles
Hazel Appleton, Centre For Infectionshealth Protection Agency
Photograph - Photograph
Budding human metapneumovirus particles. Coloured transmission electron micrograph (TEM) of a host cell with particles of the human metapneumovirus (hMPV, green) budding from its surface. The virus is a type of paramyxovirus, consisting of RNA (ribonucleic acid) genetic material enclosed in a protein coat (capsid). The proteins enable the particles to penetrate a host cell and use its mechanisms to produce many copies of the virus, which then leave the cell by forming buds. hMPV is a respiratory virus that affects almost all children by the age of 5. It will only cause a mild respiratory infection in healthy adults but small children, elderly and immunocompromised individuals are at risk of severe disease. Magnification x170,000 when printed 10 centimetres tall.
May 8th, 2013
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