A coronavirus is a common type of virus that causes an infection in the nose, sinuses, or upper throat. Most coronaviruses are not dangerous.
However, some types of them are serious. Around 858 people have died from the Middle East respiratory syndrome (MERS), which first appeared in 2012 in Saudi Arabia and then in other countries in the Middle East, Africa, Asia and Europe. In April 2014, the first American was hospitalized by MERS in Indiana and another case was reported in Florida. Both had just returned from Saudi Arabia. In May 2015, there was an outbreak of MERS in Korea, which was the largest outbreak in the Arabian Peninsula. In 2003, 774 people died from an outbreak of severe acute respiratory syndrome (SARS). As of 2015, there were no further reports of SARS cases. MERS and SARS are types of coronaviruses.
But in early January 2020, the World Health Organization identified a new type: the new coronavirus 2019 (2019-nCoV) in China. At the end of January, there were 300+ confirmed cases in China and a death count that was still in single digits, but on the rise. And despite inspections at the airport, a traveler had brought the first case to the US.
Tracking dashboard: Click and View map