Coronaviruses (AP photo) are common throughout the world. Six different coronaviruses, that scientists know of, can infect people and make them sick. Some coronaviruses have been around a long time and commonly cause mild to moderate illness in people worldwide. Two newer coronaviruses, MERS-CoV and SARS-CoV, have been known to frequently cause severe illness.
Middle East Respiratory Syndrome Coronavirus (MERS-CoV) was first reported in 2012 in Saudi Arabia and has since caused illness in people in more than 25 other countries, including the United States. Most people reported having MERS-CoV infection developed a severe acute respiratory illness, including fever, cough, and shortness of breath. Many of them have died. CDC