U.S. records 6 millionth confirmed case of COVID-19
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Novel Coronavirus SARS-CoV-2
This scanning electron microscope image shows SARS-CoV-2 (orange)—also known as 2019-nCoV, the virus that causes COVID-19—isolated from a patient in the U.S., emerging from the surface of cells (green) cultured in the lab. Credit: NIAID-RML
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