Patients with this strain of coronavirus have reported having a respiratory illness ranging in severity, with symptoms including fever, cough and shortness of breath, the CDC says. While the federal agency said it doesn’t yet know how easily this particular coronavirus spreads — noting that some viruses are more contagious than others — many patients in Wuhan had apparently had contact with a live animal and seafood market, and the infection later appeared to be spreading person-to-person among patients with no exposure to these markets.
