A series of cases of pneunomia of unknown cause was reported in Wuhan, in late December 2019. Epidemiological data demonstrated person-to-person spread is the main mode of transmission, which resulted in a worldwide outbreak. World Health Organization (WHO) designated COVID-19 as the official name. The pathogen was confirmed to be severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), a betacoronavirus. Standard technique to confirm COVID-19 is nucleic acid testing with reverse transcription polymerase chain reaction (RT-PCR) and/or next-gen sequencing (NGS) methods. Imaging features differ in different individuals and stages of the COVID-19 penumonia, and they are also different from other infectious pulmonary diseases.
Imaging of coronavirus disease 2019 part 1
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