What is the size (diameter) of the SARS-CoV-2 virus?
Biology Asked on April 24, 2021
You can easily find a lot of pictures of the SARS-CoV-2 virus. But although it should be trivial for an electron microscope to measure the size, I am not able to find accurate size information.
What is the size (diameter) of the SARS-CoV-2 virus?
(Why does some virus particles seem to have a different size?)
One Answer
Electron micrographs of negative-stained 2019-nCoV particles were generally spherical with some pleomorphism (Figure 3). Diameter varied from about 60 to 140 nm. Virus particles had quite distinctive spikes, about 9 to 12 nm, and gave virions the appearance of a solar corona.
--A Novel Coronavirus from Patients with Pneumonia in China, 2019
Figure 3 from that article:
Correct answer by iayork on April 24, 2021
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