60.2 MB (1.9 MB compressed)
5297 x 3973 pixels
45.0 x 33.5 cm ⏐ 17.7 x 13.2 in (300dpi)
RAMON ANDRADE 3DCIENCIA / SCIENCE PHOTO LIBRARY RAMON ANDRADE 3DCIENCIA / SCIENCE PHOTO LIBRARY
Illustration of the structure of the coronavirus spike (S) protein. S proteins are found in the viral membrane, they bind to receptors on host cell membranes and facilitate the virus's entry to the cell. Once inside the cell, the virus uses the cells' machinery to make more copies of itself. Different strains of coronavirus are responsible for diseases such as the common cold, gastroenteritis and SARS (severe acute respiratory syndrome). The new coronavirus SARS-CoV-19 (previously 2019-CoV) emerged in Wuhan, China, in December 2019. The virus causes the respiratory disease Covid-19 that can develop into pneumonia and be fatal in some cases.
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