Coloured transmission electron micrograph (TEM) of a B.1.1.7 variant Covid-19 coronavirus particle (round) isolated from a patient. Covid-19 is a respiratory infection that can lead to fatal pneumonia. It first emerged in Wuhan, China, in December 2019. Spike proteins (red) in the viral envelope allow the virus to bind to host cells and infect them. The B.1.1.7 variant was first identified in the UK in December 2020 and has since been found in other countries. This variant spreads between people much more quickly than other strains, but does not appear to cause more severe disease. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / NATIONAL INSTITUTES OF HEALTH / National Institute of Allergy and Infectious Diseases |
Bildgröße: | 3419 px × 5128 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |