A transmission electron microscope image shows SARS-CoV-2, also known as the 2019 novel coronavirus, which causes COVID-19, isolated from a patient in the United States.
Note the crown-like spikes on the outer edge of the virus, hence the term "coron NEW YORK - The head of emergencies at the World Health Organization said Monday its “best estimates” indicate that roughly 1 in 10 people worldwide may have been infected by the coronavirus — more than 20 times the number of confirmed cases — and warned of a difficult period ahead.Dr.