Influenzavirus B. Coloured transmission electron micrograph (TEM) of particles of the influenza B virus, which is the cause of influenza (flu) in huma
Influenzavirus B. Coloured transmission electron micrograph (TEM) of particles of the influenza B virus, which is the cause of influenza (flu) in humans. The virus particles have an enveloped outer coat (light green) bearing the proteins haemagglutinin (H) and neuraminidase (N) (dark green). These surface proteins allow the virus to enter and leave host cells. As with all viruses, influenza cannot reproduce by itself, instead entering cells and hijacking their biochemical machinery to produce more copies of the virus. Flu usually causes lethargy, aching muscles, fever and nausea.
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Photo credit: © DR KLAUS BOLLER/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
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