ronavirus Infectious disease-19) are all Betacoronavirus.
In the fall of 2002, the US National Security Agency began hearing “chatter” regarding a new serious respiratory infection in the Guangdong province of China and by the winter of 2002–2003 an alarming new disease, SARS, was making headlines worldwide. it was not until 24 March 2003, that the US CDC and Hong Kong announced that they had isolated a new Coronavirus from a SA