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50.3 MB (50.0 MB compressed)
4220 x 4166 pixels
35.8 x 35.3 cm ⏐ 14.1 x 13.9 in (300dpi)
AMI IMAGES / SCIENCE PHOTO LIBRARY AMI IMAGES / SCIENCE PHOTO LIBRARY
Influenza virus particles. Transmission electron micrograph (TEM) of influenza (flu) virus particles (virions). Each virion consists of ribonucleic acid (RNA, dark patches), surrounded by a nucleocapsid (orange) and a lipid envelope (dark rings). In the envelope are two types of protein spike, haemagglutinin (H) and neuraminidase (N), which determine the strain of virus.
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