Covid-19 variant B.1.1.7, illustration

Bildnummer 13404898
Covid-19 variant B.1.1.7, illustration
Illustration of the spike protein (red) from the B.1.1.7 variant of the SARS-CoV-2 coronavirus, the cause of the respiratory illness Covid-19. The main mutations of the new variant are labelled. The spike protein binds to angiotensin converting enzyme 2 (ACE2, blue) in the host cell membrane, mediating viral entry to the host cell. B.1.1.7 was first identified in the UK in December 2020 and has since been found in other countries. B.1.1.7 spreads between people much more quickly than other strains, but does not appear to cause more severe disease.
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Credit: Science Photo Library / Gaertner, Juan
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