Labelled model of a SARS coronavirus 2 showing its different components. These are S-Protein (spikes), M-Protein, Envelope Protein E and the Haemagglutinin-esterase HE-protein. Inside the protein coat is the RNA genetic material, with N-proteins. SARS-CoV-2 (formerly 2019-CoV) is the virus responsible for the Wuhan coronavirus outbreak, which was first detected in December 2019. The disease, called 2019-COVID, is a respiratory disease related to the SARS epidemic of 2003.